diff --git a/extras/Introjucer/Source/Application/jucer_Application.h b/extras/Introjucer/Source/Application/jucer_Application.h
index cb689022c3..9f94b29cb0 100644
--- a/extras/Introjucer/Source/Application/jucer_Application.h
+++ b/extras/Introjucer/Source/Application/jucer_Application.h
@@ -488,7 +488,7 @@ public:
     ScopedPointer<Component> appearanceEditorWindow;
 
 private:
-    class AsyncQuitRetrier  : public Timer
+    class AsyncQuitRetrier  : private Timer
     {
     public:
         AsyncQuitRetrier()   { startTimer (500); }
diff --git a/extras/Introjucer/Source/Project/jucer_NewFileWizard.cpp b/extras/Introjucer/Source/Project/jucer_NewFileWizard.cpp
index 95b723ebd2..512d022235 100644
--- a/extras/Introjucer/Source/Project/jucer_NewFileWizard.cpp
+++ b/extras/Introjucer/Source/Project/jucer_NewFileWizard.cpp
@@ -155,11 +155,8 @@ NewFileWizard::NewFileWizard()
 
 NewFileWizard::~NewFileWizard()
 {
-    clearSingletonInstance();
 }
 
-juce_ImplementSingleton_SingleThreaded (NewFileWizard)
-
 void NewFileWizard::addWizardsToMenu (PopupMenu& m) const
 {
     for (int i = 0; i < wizards.size(); ++i)
diff --git a/extras/Introjucer/Source/Project/jucer_NewFileWizard.h b/extras/Introjucer/Source/Project/jucer_NewFileWizard.h
index f207c8a639..67b30819b9 100644
--- a/extras/Introjucer/Source/Project/jucer_NewFileWizard.h
+++ b/extras/Introjucer/Source/Project/jucer_NewFileWizard.h
@@ -31,15 +31,13 @@
 
 
 //==============================================================================
-class NewFileWizard  : public DeletedAtShutdown
+class NewFileWizard    : private DeletedAtShutdown
 {
 public:
     //==============================================================================
     NewFileWizard();
     ~NewFileWizard();
 
-    juce_DeclareSingleton_SingleThreaded_Minimal (NewFileWizard);
-
     //==============================================================================
     class Type
     {
diff --git a/extras/Introjucer/Source/Project/jucer_TreeViewTypes.cpp b/extras/Introjucer/Source/Project/jucer_TreeViewTypes.cpp
index cac06de00c..e6a91e5241 100644
--- a/extras/Introjucer/Source/Project/jucer_TreeViewTypes.cpp
+++ b/extras/Introjucer/Source/Project/jucer_TreeViewTypes.cpp
@@ -135,7 +135,7 @@ void GroupTreeViewItem::addCreateFileMenuItems (PopupMenu& m)
     m.addItem (1002, "Add Existing Files...");
 
     m.addSeparator();
-    NewFileWizard::getInstance()->addWizardsToMenu (m);
+    NewFileWizard().addWizardsToMenu (m);
 }
 
 void GroupTreeViewItem::processCreateFileMenuItem (int menuID)
@@ -146,7 +146,7 @@ void GroupTreeViewItem::processCreateFileMenuItem (int menuID)
         case 1002:  browseToAddExistingFiles(); break;
 
         default:
-            NewFileWizard::getInstance()->runWizardFromMenu (menuID, item);
+            NewFileWizard().runWizardFromMenu (menuID, item);
             break;
     }
 }
diff --git a/extras/JuceDemo/Source/demos/RenderingTestComponent.cpp b/extras/JuceDemo/Source/demos/RenderingTestComponent.cpp
index 43429bd1ce..cadef5df2f 100644
--- a/extras/JuceDemo/Source/demos/RenderingTestComponent.cpp
+++ b/extras/JuceDemo/Source/demos/RenderingTestComponent.cpp
@@ -27,7 +27,7 @@
 
 //[MiscUserDefs] You can add your own user definitions and misc code here...
 class RenderingTestCanvas   : public Component,
-                              public Timer
+                              private Timer
 {
 public:
     RenderingTestCanvas (RenderingTestComponent& owner_)
diff --git a/extras/the jucer/src/properties/jucer_FontPropertyComponent.cpp b/extras/the jucer/src/properties/jucer_FontPropertyComponent.cpp
index 3070780a11..811674b75f 100644
--- a/extras/the jucer/src/properties/jucer_FontPropertyComponent.cpp	
+++ b/extras/the jucer/src/properties/jucer_FontPropertyComponent.cpp	
@@ -28,7 +28,7 @@
 
 
 //==============================================================================
-class FontList  : public DeletedAtShutdown
+class FontList  : private DeletedAtShutdown
 {
 public:
     FontList()
diff --git a/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp b/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
index c1a7e66ccd..ac2090685d 100644
--- a/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
+++ b/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
@@ -30,7 +30,7 @@
 #endif
 
 //==============================================================================
-class CoreAudioInternal  : public Timer
+class CoreAudioInternal  : private Timer
 {
 public:
     //==============================================================================
diff --git a/modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp b/modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp
index 85505a5dd8..5657a84b17 100644
--- a/modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp
+++ b/modules/juce_audio_formats/format/juce_AudioFormatWriter.cpp
@@ -166,8 +166,8 @@ bool AudioFormatWriter::writeFromAudioSampleBuffer (const AudioSampleBuffer& sou
 }
 
 //==============================================================================
-class AudioFormatWriter::ThreadedWriter::Buffer   : public TimeSliceClient,
-                                                    public AbstractFifo
+class AudioFormatWriter::ThreadedWriter::Buffer   : public AbstractFifo,
+                                                    private TimeSliceClient
 {
 public:
     Buffer (TimeSliceThread& timeSliceThread_, AudioFormatWriter* writer_, int numChannels, int bufferSize_)
diff --git a/modules/juce_audio_plugin_client/utility/juce_FakeMouseMoveGenerator.h b/modules/juce_audio_plugin_client/utility/juce_FakeMouseMoveGenerator.h
index 1cad74d853..c5549b2845 100644
--- a/modules/juce_audio_plugin_client/utility/juce_FakeMouseMoveGenerator.h
+++ b/modules/juce_audio_plugin_client/utility/juce_FakeMouseMoveGenerator.h
@@ -30,7 +30,7 @@
 
 //==============================================================================
 // Helper class to workaround carbon windows not getting mouse-moves..
-class FakeMouseMoveGenerator  : public Timer
+class FakeMouseMoveGenerator  : private Timer
 {
 public:
     FakeMouseMoveGenerator()
diff --git a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
index b224c2fc10..4eb41e2e2c 100644
--- a/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
+++ b/modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h
@@ -46,7 +46,7 @@
     AudioProcessorPlayer object.
 */
 class JUCE_API  AudioProcessorGraph   : public AudioProcessor,
-                                        public AsyncUpdater
+                                        private AsyncUpdater
 {
 public:
     //==============================================================================
@@ -395,9 +395,6 @@ public:
     void getStateInformation (juce::MemoryBlock& destData);
     void setStateInformation (const void* data, int sizeInBytes);
 
-    /** @internal */
-    void handleAsyncUpdate();
-
 private:
     //==============================================================================
     ReferenceCountedArray <Node> nodes;
@@ -415,9 +412,9 @@ private:
     MidiBuffer* currentMidiInputBuffer;
     MidiBuffer currentMidiOutputBuffer;
 
+    void handleAsyncUpdate();
     void clearRenderingSequence();
     void buildRenderingSequence();
-
     bool isAnInputTo (uint32 possibleInputId, uint32 possibleDestinationId, int recursionCheck) const;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioProcessorGraph);
diff --git a/modules/juce_audio_processors/processors/juce_GenericAudioProcessorEditor.cpp b/modules/juce_audio_processors/processors/juce_GenericAudioProcessorEditor.cpp
index 2cea5340ad..c6d2c1e4bc 100644
--- a/modules/juce_audio_processors/processors/juce_GenericAudioProcessorEditor.cpp
+++ b/modules/juce_audio_processors/processors/juce_GenericAudioProcessorEditor.cpp
@@ -24,8 +24,8 @@
 */
 
 class ProcessorParameterPropertyComp   : public PropertyComponent,
-                                         public AudioProcessorListener,
-                                         public Timer
+                                         private AudioProcessorListener,
+                                         private Timer
 {
 public:
     ProcessorParameterPropertyComp (const String& name, AudioProcessor& owner_, const int index_)
diff --git a/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.cpp b/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.cpp
index 09ca9c0c10..acb260ca79 100644
--- a/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.cpp
+++ b/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.cpp
@@ -67,7 +67,7 @@ private:
 
 //==============================================================================
 class AudioDeviceSelectorComponent::MidiInputSelectorComponentListBox  : public ListBox,
-                                                                         public ListBoxModel
+                                                                         private ListBoxModel
 {
 public:
     //==============================================================================
@@ -196,9 +196,9 @@ struct AudioDeviceSetupDetails
 
 //==============================================================================
 class AudioDeviceSettingsPanel : public Component,
-                                 public ChangeListener,
-                                 public ComboBoxListener,  // (can't use ComboBox::Listener due to idiotic VC2005 bug)
-                                 public ButtonListener
+                                 private ChangeListener,
+                                 private ComboBoxListener,  // (can't use ComboBox::Listener due to idiotic VC2005 bug)
+                                 private ButtonListener
 {
 public:
     AudioDeviceSettingsPanel (AudioIODeviceType* type_,
@@ -661,7 +661,7 @@ private:
 public:
     //==============================================================================
     class ChannelSelectorListBox  : public ListBox,
-                                    public ListBoxModel
+                                    private ListBoxModel
     {
     public:
         enum BoxType
diff --git a/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.h b/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.h
index 00ba91a848..9811b7bf93 100644
--- a/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.h
+++ b/modules/juce_audio_utils/gui/juce_AudioDeviceSelectorComponent.h
@@ -37,8 +37,8 @@
     @see AudioDeviceManager
 */
 class JUCE_API  AudioDeviceSelectorComponent  : public Component,
-                                                public ComboBoxListener, // (can't use ComboBox::Listener due to idiotic VC2005 bug)
-                                                public ChangeListener
+                                                private ComboBoxListener, // (can't use ComboBox::Listener due to idiotic VC2005 bug)
+                                                private ChangeListener
 {
 public:
     //==============================================================================
@@ -78,10 +78,6 @@ public:
     /** @internal */
     void resized();
     /** @internal */
-    void comboBoxChanged (ComboBox*);
-    /** @internal */
-    void changeListenerCallback (ChangeBroadcaster*);
-    /** @internal */
     void childBoundsChanged (Component*);
 
 private:
@@ -101,6 +97,8 @@ private:
     ScopedPointer<ComboBox> midiOutputSelector;
     ScopedPointer<Label> midiInputsLabel, midiOutputLabel;
 
+    void comboBoxChanged (ComboBox*);
+    void changeListenerCallback (ChangeBroadcaster*);
     void updateAllControls();
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioDeviceSelectorComponent);
diff --git a/modules/juce_audio_utils/gui/juce_AudioThumbnail.cpp b/modules/juce_audio_utils/gui/juce_AudioThumbnail.cpp
index 36fc1dcb4e..1dc8267554 100644
--- a/modules/juce_audio_utils/gui/juce_AudioThumbnail.cpp
+++ b/modules/juce_audio_utils/gui/juce_AudioThumbnail.cpp
@@ -90,7 +90,7 @@ public:
 
     ~LevelDataSource()
     {
-        owner.cache.removeTimeSliceClient (this);
+        owner.cache.getTimeSliceThread().removeTimeSliceClient (this);
     }
 
     enum { timeBeforeDeletingReader = 3000 };
@@ -112,7 +112,7 @@ public:
             if (lengthInSamples <= 0 || isFullyLoaded())
                 reader = nullptr;
             else
-                owner.cache.addTimeSliceClient (this);
+                owner.cache.getTimeSliceThread().addTimeSliceClient (this);
         }
     }
 
@@ -127,7 +127,7 @@ public:
             if (reader != nullptr)
             {
                 lastReaderUseTime = Time::getMillisecondCounter();
-                owner.cache.addTimeSliceClient (this);
+                owner.cache.getTimeSliceThread().addTimeSliceClient (this);
             }
         }
 
diff --git a/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.cpp b/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.cpp
index 9070b26b0b..7d49589bd7 100644
--- a/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.cpp
+++ b/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.cpp
@@ -57,11 +57,11 @@ private:
 
 //==============================================================================
 AudioThumbnailCache::AudioThumbnailCache (const int maxNumThumbsToStore_)
-    : TimeSliceThread ("thumb cache"),
+    : thread ("thumb cache"),
       maxNumThumbsToStore (maxNumThumbsToStore_)
 {
     jassert (maxNumThumbsToStore > 0);
-    startThread (2);
+    thread.startThread (2);
 }
 
 AudioThumbnailCache::~AudioThumbnailCache()
diff --git a/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.h b/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.h
index 324b3566b9..fea2d02747 100644
--- a/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.h
+++ b/modules/juce_audio_utils/gui/juce_AudioThumbnailCache.h
@@ -39,7 +39,7 @@
 
     @see AudioThumbnail
 */
-class JUCE_API  AudioThumbnailCache   : public TimeSliceThread
+class JUCE_API  AudioThumbnailCache
 {
 public:
     //==============================================================================
@@ -85,8 +85,13 @@ public:
     */
     void writeToStream (OutputStream& stream);
 
+    /** Returns the thread that client thumbnails can use. */
+    TimeSliceThread& getTimeSliceThread() noexcept      { return thread; }
+
 private:
     //==============================================================================
+    TimeSliceThread thread;
+
     class ThumbnailCacheEntry;
     friend class OwnedArray<ThumbnailCacheEntry>;
     OwnedArray<ThumbnailCacheEntry> thumbs;
diff --git a/modules/juce_data_structures/values/juce_Value.h b/modules/juce_data_structures/values/juce_Value.h
index 6fcd59000a..1fce306e3c 100644
--- a/modules/juce_data_structures/values/juce_Value.h
+++ b/modules/juce_data_structures/values/juce_Value.h
@@ -170,7 +170,7 @@ public:
         ValueSource classes to allow Value objects to represent your own custom data items.
     */
     class JUCE_API  ValueSource   : public SingleThreadedReferenceCountedObject,
-                                    public AsyncUpdater
+                                    private AsyncUpdater
     {
     public:
         ValueSource();
diff --git a/modules/juce_data_structures/values/juce_ValueTree.cpp b/modules/juce_data_structures/values/juce_ValueTree.cpp
index efd4a7a9c1..9e2f77301c 100644
--- a/modules/juce_data_structures/values/juce_ValueTree.cpp
+++ b/modules/juce_data_structures/values/juce_ValueTree.cpp
@@ -785,7 +785,7 @@ Identifier ValueTree::getPropertyName (const int index) const
 
 //==============================================================================
 class ValueTreePropertyValueSource  : public Value::ValueSource,
-                                      public ValueTree::Listener
+                                      private ValueTree::Listener
 {
 public:
     ValueTreePropertyValueSource (const ValueTree& tree_, const Identifier& property_,
@@ -803,6 +803,11 @@ public:
     var getValue() const                 { return tree [property]; }
     void setValue (const var& newValue)  { tree.setProperty (property, newValue, undoManager); }
 
+private:
+    ValueTree tree;
+    const Identifier property;
+    UndoManager* const undoManager;
+
     void valueTreePropertyChanged (ValueTree& treeWhosePropertyHasChanged,
                                    const Identifier& changedProperty)
     {
@@ -815,11 +820,6 @@ public:
     void valueTreeChildOrderChanged (ValueTree&) {}
     void valueTreeParentChanged (ValueTree&) {}
 
-private:
-    ValueTree tree;
-    const Identifier property;
-    UndoManager* const undoManager;
-
     JUCE_DECLARE_NON_COPYABLE (ValueTreePropertyValueSource);
 };
 
diff --git a/modules/juce_events/interprocess/juce_InterprocessConnection.h b/modules/juce_events/interprocess/juce_InterprocessConnection.h
index 63794c8e61..f2b6125446 100644
--- a/modules/juce_events/interprocess/juce_InterprocessConnection.h
+++ b/modules/juce_events/interprocess/juce_InterprocessConnection.h
@@ -48,7 +48,7 @@ class MemoryBlock;
 
     @see InterprocessConnectionServer, Socket, NamedPipe
 */
-class JUCE_API  InterprocessConnection    : public Thread
+class JUCE_API  InterprocessConnection    : private Thread
 {
 public:
     //==============================================================================
diff --git a/modules/juce_graphics/colour/juce_Colour.cpp b/modules/juce_graphics/colour/juce_Colour.cpp
index 6f43646577..9c4b45e2ad 100644
--- a/modules/juce_graphics/colour/juce_Colour.cpp
+++ b/modules/juce_graphics/colour/juce_Colour.cpp
@@ -42,112 +42,111 @@ namespace ColourHelpers
                            + g * g * 0.691f
                            + b * b * 0.068f);
     }
-}
 
-//==============================================================================
-struct HSB
-{
-    HSB (const Colour& col) noexcept
+    //==============================================================================
+    struct HSB
     {
-        const int r = col.getRed();
-        const int g = col.getGreen();
-        const int b = col.getBlue();
-
-        const int hi = jmax (r, g, b);
-        const int lo = jmin (r, g, b);
-
-        if (hi != 0)
+        HSB (const Colour& col) noexcept
         {
-            saturation = (hi - lo) / (float) hi;
+            const int r = col.getRed();
+            const int g = col.getGreen();
+            const int b = col.getBlue();
 
-            if (saturation > 0)
+            const int hi = jmax (r, g, b);
+            const int lo = jmin (r, g, b);
+
+            if (hi != 0)
             {
-                const float invDiff = 1.0f / (hi - lo);
+                saturation = (hi - lo) / (float) hi;
 
-                const float red   = (hi - r) * invDiff;
-                const float green = (hi - g) * invDiff;
-                const float blue  = (hi - b) * invDiff;
+                if (saturation > 0)
+                {
+                    const float invDiff = 1.0f / (hi - lo);
 
-                if (r == hi)
-                    hue = blue - green;
-                else if (g == hi)
-                    hue = 2.0f + red - blue;
-                else
-                    hue = 4.0f + green - red;
+                    const float red   = (hi - r) * invDiff;
+                    const float green = (hi - g) * invDiff;
+                    const float blue  = (hi - b) * invDiff;
 
-                hue *= 1.0f / 6.0f;
+                    if (r == hi)
+                        hue = blue - green;
+                    else if (g == hi)
+                        hue = 2.0f + red - blue;
+                    else
+                        hue = 4.0f + green - red;
 
-                if (hue < 0)
-                    ++hue;
+                    hue *= 1.0f / 6.0f;
+
+                    if (hue < 0)
+                        ++hue;
+                }
+                else
+                {
+                    hue = 0;
+                }
             }
             else
             {
-                hue = 0;
+                saturation = hue = 0;
             }
+
+            brightness = hi / 255.0f;
         }
-        else
+
+        Colour toColour (const Colour& original) const noexcept
         {
-            saturation = hue = 0;
+            return Colour (hue, saturation, brightness, original.getAlpha());
         }
 
-        brightness = hi / 255.0f;
-    }
-
-    Colour toColour (const Colour& original) const noexcept
-    {
-        return Colour (hue, saturation, brightness, original.getAlpha());
-    }
-
-    static PixelARGB toRGB (float h, float s, float v, const uint8 alpha) noexcept
-    {
-        v = jlimit (0.0f, 255.0f, v * 255.0f);
-        const uint8 intV = (uint8) roundToInt (v);
-
-        if (s <= 0)
-            return PixelARGB (alpha, intV, intV, intV);
-
-        s = jmin (1.0f, s);
-        h = (h - std::floor (h)) * 6.0f + 0.00001f; // need a small adjustment to compensate for rounding errors
-        const float f = h - std::floor (h);
-        const uint8 x = (uint8) roundToInt (v * (1.0f - s));
-
-        if (h < 1.0f)   return PixelARGB (alpha, intV,    (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x);
-        if (h < 2.0f)   return PixelARGB (alpha,          (uint8) roundToInt (v * (1.0f - s * f)), intV, x);
-        if (h < 3.0f)   return PixelARGB (alpha, x, intV, (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))));
-        if (h < 4.0f)   return PixelARGB (alpha, x,       (uint8) roundToInt (v * (1.0f - s * f)), intV);
-        if (h < 5.0f)   return PixelARGB (alpha,          (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x, intV);
-        else            return PixelARGB (alpha, intV, x, (uint8) roundToInt (v * (1.0f - s * f)));
-    }
-
-    float hue, saturation, brightness;
-};
-
-//==============================================================================
-struct YIQ
-{
-    YIQ (const Colour& c) noexcept
-    {
-        const float r = c.getFloatRed();
-        const float g = c.getFloatGreen();
-        const float b = c.getFloatBlue();
+        static PixelARGB toRGB (float h, float s, float v, const uint8 alpha) noexcept
+        {
+            v = jlimit (0.0f, 255.0f, v * 255.0f);
+            const uint8 intV = (uint8) roundToInt (v);
+
+            if (s <= 0)
+                return PixelARGB (alpha, intV, intV, intV);
+
+            s = jmin (1.0f, s);
+            h = (h - std::floor (h)) * 6.0f + 0.00001f; // need a small adjustment to compensate for rounding errors
+            const float f = h - std::floor (h);
+            const uint8 x = (uint8) roundToInt (v * (1.0f - s));
+
+            if (h < 1.0f)   return PixelARGB (alpha, intV,    (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x);
+            if (h < 2.0f)   return PixelARGB (alpha,          (uint8) roundToInt (v * (1.0f - s * f)), intV, x);
+            if (h < 3.0f)   return PixelARGB (alpha, x, intV, (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))));
+            if (h < 4.0f)   return PixelARGB (alpha, x,       (uint8) roundToInt (v * (1.0f - s * f)), intV);
+            if (h < 5.0f)   return PixelARGB (alpha,          (uint8) roundToInt (v * (1.0f - (s * (1.0f - f)))), x, intV);
+            else            return PixelARGB (alpha, intV, x, (uint8) roundToInt (v * (1.0f - s * f)));
+        }
 
-        y = 0.299900f * r + 0.587000f * g + 0.114000f * b;
-        i = 0.595716f * r - 0.274453f * g - 0.321264f * b;
-        q = 0.211456f * r - 0.522591f * g - 0.311350f * b;
-        alpha = c.getFloatAlpha();
-    }
+        float hue, saturation, brightness;
+    };
 
-    Colour toColour() const noexcept
+    //==============================================================================
+    struct YIQ
     {
-        return Colour::fromFloatRGBA (y + 0.9563f * i + 0.6210f * q,
-                                      y - 0.2721f * i - 0.6474f * q,
-                                      y - 1.1070f * i + 1.7046f * q,
-                                      alpha);
-    }
+        YIQ (const Colour& c) noexcept
+        {
+            const float r = c.getFloatRed();
+            const float g = c.getFloatGreen();
+            const float b = c.getFloatBlue();
+
+            y = 0.2999f * r + 0.5870f * g + 0.1140f * b;
+            i = 0.5957f * r - 0.2744f * g - 0.3212f * b;
+            q = 0.2114f * r - 0.5225f * g - 0.3113f * b;
+            alpha = c.getFloatAlpha();
+        }
 
-    float y, i, q, alpha;
-};
+        Colour toColour() const noexcept
+        {
+            return Colour::fromFloatRGBA (y + 0.9563f * i + 0.6210f * q,
+                                          y - 0.2721f * i - 0.6474f * q,
+                                          y - 1.1070f * i + 1.7046f * q,
+                                          alpha);
+        }
 
+        float y, i, q, alpha;
+    };
+}
 
 //==============================================================================
 Colour::Colour() noexcept
@@ -206,7 +205,7 @@ Colour Colour::fromFloatRGBA (const float red, const float green, const float bl
 }
 
 Colour::Colour (const float hue, const float saturation, const float brightness, const float alpha) noexcept
-    : argb (HSB::toRGB (hue, saturation, brightness, ColourHelpers::floatToUInt8 (alpha)))
+    : argb (ColourHelpers::HSB::toRGB (hue, saturation, brightness, ColourHelpers::floatToUInt8 (alpha)))
 {
 }
 
@@ -216,7 +215,7 @@ Colour Colour::fromHSV (const float hue, const float saturation, const float bri
 }
 
 Colour::Colour (const float hue, const float saturation, const float brightness, const uint8 alpha) noexcept
-    : argb (HSB::toRGB (hue, saturation, brightness, alpha))
+    : argb (ColourHelpers::HSB::toRGB (hue, saturation, brightness, alpha))
 {
 }
 
@@ -320,38 +319,38 @@ float Colour::getFloatAlpha() const noexcept    { return getAlpha() / 255.0f; }
 //==============================================================================
 void Colour::getHSB (float& h, float& s, float& v) const noexcept
 {
-    const HSB hsb (*this);
+    const ColourHelpers::HSB hsb (*this);
     h = hsb.hue;
     s = hsb.saturation;
     v = hsb.brightness;
 }
 
-float Colour::getHue() const noexcept           { return HSB (*this).hue; }
-float Colour::getSaturation() const noexcept    { return HSB (*this).saturation; }
-float Colour::getBrightness() const noexcept    { return HSB (*this).brightness; }
+float Colour::getHue() const noexcept           { return ColourHelpers::HSB (*this).hue; }
+float Colour::getSaturation() const noexcept    { return ColourHelpers::HSB (*this).saturation; }
+float Colour::getBrightness() const noexcept    { return ColourHelpers::HSB (*this).brightness; }
 
-Colour Colour::withHue (float h) const noexcept          { HSB hsb (*this); hsb.hue = h;        return hsb.toColour (*this); }
-Colour Colour::withSaturation (float s) const noexcept   { HSB hsb (*this); hsb.saturation = s; return hsb.toColour (*this); }
-Colour Colour::withBrightness (float v) const noexcept   { HSB hsb (*this); hsb.brightness = v; return hsb.toColour (*this); }
+Colour Colour::withHue (float h) const noexcept          { ColourHelpers::HSB hsb (*this); hsb.hue = h;        return hsb.toColour (*this); }
+Colour Colour::withSaturation (float s) const noexcept   { ColourHelpers::HSB hsb (*this); hsb.saturation = s; return hsb.toColour (*this); }
+Colour Colour::withBrightness (float v) const noexcept   { ColourHelpers::HSB hsb (*this); hsb.brightness = v; return hsb.toColour (*this); }
 
 //==============================================================================
 Colour Colour::withRotatedHue (const float amountToRotate) const noexcept
 {
-    HSB hsb (*this);
+    ColourHelpers::HSB hsb (*this);
     hsb.hue += amountToRotate;
     return hsb.toColour (*this);
 }
 
 Colour Colour::withMultipliedSaturation (const float amount) const noexcept
 {
-    HSB hsb (*this);
+    ColourHelpers::HSB hsb (*this);
     hsb.saturation = jmin (1.0f, hsb.saturation * amount);
     return hsb.toColour (*this);
 }
 
 Colour Colour::withMultipliedBrightness (const float amount) const noexcept
 {
-    HSB hsb (*this);
+    ColourHelpers::HSB hsb (*this);
     hsb.brightness = jmin (1.0f, hsb.brightness * amount);
     return hsb.toColour (*this);
 }
@@ -394,8 +393,8 @@ Colour Colour::contrasting (const float amount) const noexcept
 
 Colour Colour::contrasting (const Colour& target, float minContrast) const noexcept
 {
-    const YIQ bg (*this);
-    YIQ fg (target);
+    const ColourHelpers::YIQ bg (*this);
+    ColourHelpers::YIQ fg (target);
 
     if (fabs (bg.y - fg.y) >= minContrast)
         return target;
diff --git a/modules/juce_graphics/fonts/juce_Font.cpp b/modules/juce_graphics/fonts/juce_Font.cpp
index 2fb7edbdfb..6972ea2d5d 100644
--- a/modules/juce_graphics/fonts/juce_Font.cpp
+++ b/modules/juce_graphics/fonts/juce_Font.cpp
@@ -39,7 +39,7 @@ typedef Typeface::Ptr (*GetTypefaceForFont) (const Font&);
 GetTypefaceForFont juce_getTypefaceForFont = nullptr;
 
 //==============================================================================
-class TypefaceCache  : public DeletedAtShutdown
+class TypefaceCache  : private DeletedAtShutdown
 {
 public:
     TypefaceCache()
diff --git a/modules/juce_graphics/images/juce_ImageCache.cpp b/modules/juce_graphics/images/juce_ImageCache.cpp
index a39cfebf3c..cac8d6a028 100644
--- a/modules/juce_graphics/images/juce_ImageCache.cpp
+++ b/modules/juce_graphics/images/juce_ImageCache.cpp
@@ -23,8 +23,8 @@
   ==============================================================================
 */
 
-class ImageCache::Pimpl     : public Timer,
-                              public DeletedAtShutdown
+class ImageCache::Pimpl     : private Timer,
+                              private DeletedAtShutdown
 {
 public:
     Pimpl()
diff --git a/modules/juce_graphics/native/juce_linux_Fonts.cpp b/modules/juce_graphics/native/juce_linux_Fonts.cpp
index 4eabde8d4c..7fc2dc9ecb 100644
--- a/modules/juce_graphics/native/juce_linux_Fonts.cpp
+++ b/modules/juce_graphics/native/juce_linux_Fonts.cpp
@@ -127,7 +127,7 @@ private:
 };
 
 //==============================================================================
-class FTTypefaceList  : public DeletedAtShutdown
+class FTTypefaceList  : private DeletedAtShutdown
 {
 public:
     FTTypefaceList()
diff --git a/modules/juce_gui_basics/commands/juce_KeyPressMappingSet.h b/modules/juce_gui_basics/commands/juce_KeyPressMappingSet.h
index 99d2cae1d2..fb1a535a6d 100644
--- a/modules/juce_gui_basics/commands/juce_KeyPressMappingSet.h
+++ b/modules/juce_gui_basics/commands/juce_KeyPressMappingSet.h
@@ -87,7 +87,7 @@
 */
 class JUCE_API  KeyPressMappingSet  : public KeyListener,
                                       public ChangeBroadcaster,
-                                      public FocusChangeListener
+                                      private FocusChangeListener
 {
 public:
     //==============================================================================
diff --git a/modules/juce_gui_basics/components/juce_Desktop.cpp b/modules/juce_gui_basics/components/juce_Desktop.cpp
index fa9d1789cb..ce64231525 100644
--- a/modules/juce_gui_basics/components/juce_Desktop.cpp
+++ b/modules/juce_gui_basics/components/juce_Desktop.cpp
@@ -208,10 +208,11 @@ public:
 
         for (int i = desktop.getNumMouseSources(); --i >= 0;)
         {
-            MouseInputSource* const source = desktop.getMouseSource(i);
-            if (source->isDragging())
+            MouseInputSource& source = *desktop.getMouseSource(i);
+
+            if (source.isDragging())
             {
-                source->triggerFakeMove();
+                source.triggerFakeMove();
                 ++numMiceDown;
             }
         }
diff --git a/modules/juce_gui_basics/components/juce_ModalComponentManager.h b/modules/juce_gui_basics/components/juce_ModalComponentManager.h
index d9430a0b7b..39e27bdeae 100644
--- a/modules/juce_gui_basics/components/juce_ModalComponentManager.h
+++ b/modules/juce_gui_basics/components/juce_ModalComponentManager.h
@@ -38,8 +38,8 @@
     @see Component::enterModalState, Component::exitModalState, Component::isCurrentlyModal,
          Component::getCurrentlyModalComponent, Component::isCurrentlyBlockedByAnotherModalComponent
 */
-class JUCE_API  ModalComponentManager   : public AsyncUpdater,
-                                          public DeletedAtShutdown
+class JUCE_API  ModalComponentManager   : private AsyncUpdater,
+                                          private DeletedAtShutdown
 {
 public:
     //==============================================================================
diff --git a/modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.h b/modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.h
index 48367be540..b325707967 100644
--- a/modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.h
+++ b/modules/juce_gui_basics/filebrowser/juce_DirectoryContentsList.h
@@ -40,7 +40,7 @@
     @see FileListComponent, FileBrowserComponent
 */
 class JUCE_API  DirectoryContentsList   : public ChangeBroadcaster,
-                                          public TimeSliceClient
+                                          private TimeSliceClient
 {
 public:
     //==============================================================================
@@ -184,8 +184,6 @@ public:
 
     //==============================================================================
     /** @internal */
-    int useTimeSlice();
-    /** @internal */
     TimeSliceThread& getTimeSliceThread()                   { return thread; }
     /** @internal */
     static int compareElements (const DirectoryContentsList::FileInfo* first,
@@ -203,6 +201,7 @@ private:
     ScopedPointer <DirectoryIterator> fileFindHandle;
     bool volatile shouldStop;
 
+    int useTimeSlice();
     void stopSearching();
     void changed();
     bool checkNextFile (bool& hasChanged);
diff --git a/modules/juce_gui_basics/filebrowser/juce_FileChooserDialogBox.h b/modules/juce_gui_basics/filebrowser/juce_FileChooserDialogBox.h
index 4a3bba7e0b..ddd9d93087 100644
--- a/modules/juce_gui_basics/filebrowser/juce_FileChooserDialogBox.h
+++ b/modules/juce_gui_basics/filebrowser/juce_FileChooserDialogBox.h
@@ -68,8 +68,8 @@
     @see FileChooser
 */
 class JUCE_API  FileChooserDialogBox : public ResizableWindow,
-                                       public ButtonListener,  // (can't use Button::Listener due to idiotic VC2005 bug)
-                                       public FileBrowserListener
+                                       private ButtonListener,  // (can't use Button::Listener due to idiotic VC2005 bug)
+                                       private FileBrowserListener
 {
 public:
     //==============================================================================
@@ -121,7 +121,7 @@ public:
     /** Sets the size of this dialog box to its default and positions it either in the
         centre of the screen, or centred around a component that is provided.
     */
-    void centreWithDefaultSize (Component* componentToCentreAround = 0);
+    void centreWithDefaultSize (Component* componentToCentreAround = nullptr);
 
     //==============================================================================
     /** A set of colour IDs to use to change the colour of various aspects of the box.
@@ -136,25 +136,18 @@ public:
         titleTextColourId      = 0x1000850, /**< The colour to use to draw the box's title. */
     };
 
-    //==============================================================================
-    /** @internal */
+private:
+    class ContentComponent;
+    ContentComponent* content;
+    const bool warnAboutOverwritingExistingFiles;
+
     void buttonClicked (Button*);
-    /** @internal */
     void closeButtonPressed();
-    /** @internal */
     void selectionChanged();
-    /** @internal */
     void fileClicked (const File&, const MouseEvent&);
-    /** @internal */
     void fileDoubleClicked (const File&);
-    /** @internal */
     void browserRootChanged (const File&);
 
-private:
-    class ContentComponent;
-    ContentComponent* content;
-    const bool warnAboutOverwritingExistingFiles;
-
     void okButtonPressed();
     void createNewFolder();
     void createNewFolderConfirmed (const String& name);
diff --git a/modules/juce_gui_basics/filebrowser/juce_FileListComponent.cpp b/modules/juce_gui_basics/filebrowser/juce_FileListComponent.cpp
index 70caa16e04..a3a8d957af 100644
--- a/modules/juce_gui_basics/filebrowser/juce_FileListComponent.cpp
+++ b/modules/juce_gui_basics/filebrowser/juce_FileListComponent.cpp
@@ -87,17 +87,17 @@ void FileListComponent::changeListenerCallback (ChangeBroadcaster*)
 }
 
 //==============================================================================
-class FileListItemComponent  : public Component,
-                               public TimeSliceClient,
-                               public AsyncUpdater
+class FileListComponent::ItemComponent  : public Component,
+                                          private TimeSliceClient,
+                                          private AsyncUpdater
 {
 public:
-    FileListItemComponent (FileListComponent& owner_, TimeSliceThread& thread_)
+    ItemComponent (FileListComponent& owner_, TimeSliceThread& thread_)
         : owner (owner_), thread (thread_), index (0), highlighted (false)
     {
     }
 
-    ~FileListItemComponent()
+    ~ItemComponent()
     {
         thread.removeTimeSliceClient (this);
     }
@@ -213,7 +213,7 @@ private:
         }
     }
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileListItemComponent);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ItemComponent);
 };
 
 //==============================================================================
@@ -228,12 +228,12 @@ void FileListComponent::paintListBoxItem (int, Graphics&, int, int, bool)
 
 Component* FileListComponent::refreshComponentForRow (int row, bool isSelected, Component* existingComponentToUpdate)
 {
-    jassert (existingComponentToUpdate == nullptr || dynamic_cast <FileListItemComponent*> (existingComponentToUpdate) != nullptr);
+    jassert (existingComponentToUpdate == nullptr || dynamic_cast <ItemComponent*> (existingComponentToUpdate) != nullptr);
 
-    FileListItemComponent* comp = static_cast <FileListItemComponent*> (existingComponentToUpdate);
+    ItemComponent* comp = static_cast <ItemComponent*> (existingComponentToUpdate);
 
     if (comp == nullptr)
-        comp = new FileListItemComponent (*this, fileList.getTimeSliceThread());
+        comp = new ItemComponent (*this, fileList.getTimeSliceThread());
 
     DirectoryContentsList::FileInfo fileInfo;
     comp->update (fileList.getDirectory(),
diff --git a/modules/juce_gui_basics/filebrowser/juce_FileListComponent.h b/modules/juce_gui_basics/filebrowser/juce_FileListComponent.h
index 9d58b7ccf1..aa2cc86e53 100644
--- a/modules/juce_gui_basics/filebrowser/juce_FileListComponent.h
+++ b/modules/juce_gui_basics/filebrowser/juce_FileListComponent.h
@@ -80,26 +80,21 @@ public:
         (and if the file isn't in the list, all other items will be deselected). */
     void setSelectedFile (const File&);
 
+private:
     //==============================================================================
-    /** @internal */
+    File lastDirectory;
+
+    class ItemComponent;
+
     void changeListenerCallback (ChangeBroadcaster*);
-    /** @internal */
+
     int getNumRows();
-    /** @internal */
     void paintListBoxItem (int, Graphics&, int, int, bool);
-    /** @internal */
     Component* refreshComponentForRow (int rowNumber, bool isRowSelected, Component* existingComponentToUpdate);
-    /** @internal */
     void selectedRowsChanged (int lastRowSelected);
-    /** @internal */
     void deleteKeyPressed (int currentSelectedRow);
-    /** @internal */
     void returnKeyPressed (int currentSelectedRow);
 
-private:
-    //==============================================================================
-    File lastDirectory;
-
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileListComponent);
 };
 
diff --git a/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp b/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp
index 9323e90ae5..3740bf3f7e 100644
--- a/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp
+++ b/modules/juce_gui_basics/filebrowser/juce_FileTreeComponent.cpp
@@ -27,9 +27,9 @@ Image juce_createIconForFile (const File& file);
 
 //==============================================================================
 class FileListTreeItem   : public TreeViewItem,
-                           public TimeSliceClient,
-                           public AsyncUpdater,
-                           public ChangeListener
+                           private TimeSliceClient,
+                           private AsyncUpdater,
+                           private ChangeListener
 {
 public:
     FileListTreeItem (FileTreeComponent& owner_,
diff --git a/modules/juce_gui_basics/keyboard/juce_CaretComponent.h b/modules/juce_gui_basics/keyboard/juce_CaretComponent.h
index 953ad3e230..2572637ac1 100644
--- a/modules/juce_gui_basics/keyboard/juce_CaretComponent.h
+++ b/modules/juce_gui_basics/keyboard/juce_CaretComponent.h
@@ -33,7 +33,7 @@
 /**
 */
 class JUCE_API  CaretComponent   : public Component,
-                                   public Timer
+                                   private Timer
 {
 public:
     //==============================================================================
@@ -69,12 +69,12 @@ public:
     //==============================================================================
     /** @internal */
     void paint (Graphics& g);
-    /** @internal */
-    void timerCallback();
 
 private:
     Component* owner;
+
     bool shouldBeShown() const;
+    void timerCallback();
 
     JUCE_DECLARE_NON_COPYABLE (CaretComponent);
 };
diff --git a/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.cpp b/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.cpp
index c23b95c464..4f274d2b91 100644
--- a/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.cpp
+++ b/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.cpp
@@ -79,10 +79,10 @@ MultiDocumentPanel* MultiDocumentPanelWindow::getOwner() const noexcept
 
 
 //==============================================================================
-class MDITabbedComponentInternal   : public TabbedComponent
+class MultiDocumentPanel::TabbedComponentInternal   : public TabbedComponent
 {
 public:
-    MDITabbedComponentInternal()
+    TabbedComponentInternal()
         : TabbedComponent (TabbedButtonBar::TabsAtTop)
     {
     }
@@ -203,7 +203,7 @@ bool MultiDocumentPanel::addDocument (Component* const component,
     {
         if (tabComponent == nullptr && components.size() > numDocsBeforeTabsUsed)
         {
-            addAndMakeVisible (tabComponent = new MDITabbedComponentInternal());
+            addAndMakeVisible (tabComponent = new TabbedComponentInternal());
 
             Array <Component*> temp (components);
 
diff --git a/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.h b/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.h
index 609ae6e361..84215e1835 100644
--- a/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.h
+++ b/modules/juce_gui_basics/layout/juce_MultiDocumentPanel.h
@@ -29,7 +29,6 @@
 #include "juce_TabbedComponent.h"
 #include "../windows/juce_DocumentWindow.h"
 class MultiDocumentPanel;
-class MDITabbedComponentInternal;
 
 
 //==============================================================================
@@ -293,8 +292,9 @@ private:
     Colour backgroundColour;
     int maximumNumDocuments, numDocsBeforeTabsUsed;
 
+    class TabbedComponentInternal;
     friend class MultiDocumentPanelWindow;
-    friend class MDITabbedComponentInternal;
+    friend class TabbedComponentInternal;
 
     Component* getContainerComp (Component* c) const;
     void updateOrder();
diff --git a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.cpp b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.cpp
index ed20b985cf..3267b96908 100644
--- a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.cpp
+++ b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.cpp
@@ -1605,7 +1605,7 @@ Button* LookAndFeel::createSliderButton (const bool isIncrement)
     return new TextButton (isIncrement ? "+" : "-", String::empty);
 }
 
-class SliderLabelComp : public Label
+class LookAndFeel::SliderLabelComp : public Label
 {
 public:
     SliderLabelComp() : Label (String::empty, String::empty) {}
@@ -1827,7 +1827,7 @@ void LookAndFeel::drawDocumentWindowTitleBar (DocumentWindow& window,
 }
 
 //==============================================================================
-class GlassWindowButton   : public Button
+class LookAndFeel::GlassWindowButton   : public Button
 {
 public:
     //==============================================================================
@@ -1841,10 +1841,6 @@ public:
     {
     }
 
-    ~GlassWindowButton()
-    {
-    }
-
     //==============================================================================
     void paintButton (Graphics& g, bool isMouseOverButton, bool isButtonDown)
     {
diff --git a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.h b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.h
index a4c53a9e47..caea1b086a 100644
--- a/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.h
+++ b/modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.h
@@ -639,6 +639,9 @@ private:
     virtual int getTabButtonBestWidth (int, const String&, int, Button&) { return 0; }
    #endif
 
+    class GlassWindowButton;
+    class SliderLabelComp;
+
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LookAndFeel);
 };
 
diff --git a/modules/juce_gui_basics/menus/juce_PopupMenu.cpp b/modules/juce_gui_basics/menus/juce_PopupMenu.cpp
index f427bab1f1..27b2c73a7f 100644
--- a/modules/juce_gui_basics/menus/juce_PopupMenu.cpp
+++ b/modules/juce_gui_basics/menus/juce_PopupMenu.cpp
@@ -1244,7 +1244,7 @@ void PopupMenu::addCustomItem (const int itemResultId, CustomComponent* const cu
                          Colours::black, false, customComponent, nullptr, nullptr));
 }
 
-class NormalComponentWrapper : public PopupMenu::CustomComponent
+class PopupMenu::NormalComponentWrapper : public PopupMenu::CustomComponent
 {
 public:
     NormalComponentWrapper (Component* const comp, const int w, const int h,
@@ -1301,7 +1301,7 @@ void PopupMenu::addSeparator()
 }
 
 //==============================================================================
-class HeaderItemComponent  : public PopupMenu::CustomComponent
+class PopupMenu::HeaderItemComponent  : public PopupMenu::CustomComponent
 {
 public:
     HeaderItemComponent (const String& name)
diff --git a/modules/juce_gui_basics/menus/juce_PopupMenu.h b/modules/juce_gui_basics/menus/juce_PopupMenu.h
index fa09ac1309..fd473efadf 100644
--- a/modules/juce_gui_basics/menus/juce_PopupMenu.h
+++ b/modules/juce_gui_basics/menus/juce_PopupMenu.h
@@ -478,6 +478,8 @@ private:
     //==============================================================================
     class Item;
     class ItemComponent;
+    class HeaderItemComponent;
+    class NormalComponentWrapper;
 
     friend class MenuItemIterator;
     friend class ItemComponent;
diff --git a/modules/juce_gui_basics/misc/juce_DropShadower.cpp b/modules/juce_gui_basics/misc/juce_DropShadower.cpp
index 8336214627..706298186d 100644
--- a/modules/juce_gui_basics/misc/juce_DropShadower.cpp
+++ b/modules/juce_gui_basics/misc/juce_DropShadower.cpp
@@ -23,7 +23,7 @@
   ==============================================================================
 */
 
-class ShadowWindow  : public Component
+class DropShadower::ShadowWindow  : public Component
 {
 public:
     ShadowWindow (Component& owner, const int type_, const Image shadowImageSections [12])
diff --git a/modules/juce_gui_basics/misc/juce_DropShadower.h b/modules/juce_gui_basics/misc/juce_DropShadower.h
index 142722c362..e220baf3a8 100644
--- a/modules/juce_gui_basics/misc/juce_DropShadower.h
+++ b/modules/juce_gui_basics/misc/juce_DropShadower.h
@@ -59,6 +59,8 @@ public:
 
 private:
     //==============================================================================
+    class ShadowWindow;
+
     Component* owner;
     OwnedArray<Component> shadowWindows;
     Image shadowImageSections[12];
diff --git a/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.cpp b/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.cpp
index 0bc81254a8..3016cd0675 100644
--- a/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.cpp
+++ b/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.cpp
@@ -28,8 +28,8 @@ bool juce_performDragDropText (const String&, bool& shouldStop);
 
 
 //==============================================================================
-class DragImageComponent  : public Component,
-                            public Timer
+class DragAndDropContainer::DragImageComponent  : public Component,
+                                                  private Timer
 {
 public:
     DragImageComponent (const Image& im,
diff --git a/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.h b/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.h
index 58dd697fd2..61c04da0dc 100644
--- a/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.h
+++ b/modules/juce_gui_basics/mouse/juce_DragAndDropContainer.h
@@ -170,6 +170,7 @@ protected:
 
 private:
     //==============================================================================
+    class DragImageComponent;
     friend class DragImageComponent;
     ScopedPointer <Component> dragImageComponent;
     String currentDragDesc;
diff --git a/modules/juce_gui_basics/mouse/juce_MouseInputSource.cpp b/modules/juce_gui_basics/mouse/juce_MouseInputSource.cpp
index 6a5a02f12d..150d96df50 100644
--- a/modules/juce_gui_basics/mouse/juce_MouseInputSource.cpp
+++ b/modules/juce_gui_basics/mouse/juce_MouseInputSource.cpp
@@ -23,7 +23,7 @@
   ==============================================================================
 */
 
-class MouseInputSourceInternal   : public AsyncUpdater
+class MouseInputSourceInternal   : private AsyncUpdater
 {
 public:
     //==============================================================================
diff --git a/modules/juce_gui_basics/native/juce_mac_Windowing.mm b/modules/juce_gui_basics/native/juce_mac_Windowing.mm
index 1f26a6076c..737c8a386b 100644
--- a/modules/juce_gui_basics/native/juce_mac_Windowing.mm
+++ b/modules/juce_gui_basics/native/juce_mac_Windowing.mm
@@ -269,7 +269,7 @@ bool Desktop::isScreenSaverEnabled()
 }
 
 //==============================================================================
-class DisplaySettingsChangeCallback  : public DeletedAtShutdown
+class DisplaySettingsChangeCallback  : private DeletedAtShutdown
 {
 public:
     DisplaySettingsChangeCallback()
diff --git a/modules/juce_gui_basics/native/juce_win32_Windowing.cpp b/modules/juce_gui_basics/native/juce_win32_Windowing.cpp
index efcb37c977..0f518dfb2c 100644
--- a/modules/juce_gui_basics/native/juce_win32_Windowing.cpp
+++ b/modules/juce_gui_basics/native/juce_win32_Windowing.cpp
@@ -1110,7 +1110,7 @@ private:
     TemporaryImage offscreenImageGenerator;
 
     //==============================================================================
-    class WindowClassHolder    : public DeletedAtShutdown
+    class WindowClassHolder    : private DeletedAtShutdown
     {
     public:
         WindowClassHolder()
diff --git a/modules/juce_gui_basics/properties/juce_ChoicePropertyComponent.cpp b/modules/juce_gui_basics/properties/juce_ChoicePropertyComponent.cpp
index ac1aa1c78e..08fae52f76 100644
--- a/modules/juce_gui_basics/properties/juce_ChoicePropertyComponent.cpp
+++ b/modules/juce_gui_basics/properties/juce_ChoicePropertyComponent.cpp
@@ -24,7 +24,7 @@
 */
 
 class ChoicePropertyComponent::RemapperValueSource    : public Value::ValueSource,
-                                                        public ValueListener
+                                                        private ValueListener
 {
 public:
     RemapperValueSource (const Value& sourceValue_, const Array<var>& mappings_)
@@ -34,8 +34,6 @@ public:
         sourceValue.addListener (this);
     }
 
-    ~RemapperValueSource() {}
-
     var getValue() const
     {
         return mappings.indexOf (sourceValue.getValue()) + 1;
@@ -49,16 +47,15 @@ public:
             sourceValue = remappedVal;
     }
 
+protected:
+    Value sourceValue;
+    Array<var> mappings;
+
     void valueChanged (Value&)
     {
         sendChangeMessage (true);
     }
 
-protected:
-    //==============================================================================
-    Value sourceValue;
-    Array<var> mappings;
-
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RemapperValueSource);
 };
 
diff --git a/modules/juce_gui_basics/properties/juce_PropertyPanel.cpp b/modules/juce_gui_basics/properties/juce_PropertyPanel.cpp
index 23e615e96d..4632036139 100644
--- a/modules/juce_gui_basics/properties/juce_PropertyPanel.cpp
+++ b/modules/juce_gui_basics/properties/juce_PropertyPanel.cpp
@@ -23,12 +23,12 @@
   ==============================================================================
 */
 
-class PropertySectionComponent  : public Component
+class PropertyPanel::SectionComponent  : public Component
 {
 public:
-    PropertySectionComponent (const String& sectionTitle,
-                              const Array <PropertyComponent*>& newProperties,
-                              const bool sectionIsOpen_)
+    SectionComponent (const String& sectionTitle,
+                      const Array <PropertyComponent*>& newProperties,
+                      const bool sectionIsOpen_)
         : Component (sectionTitle),
           titleHeight (sectionTitle.isNotEmpty() ? 22 : 0),
           sectionIsOpen (sectionIsOpen_)
@@ -42,7 +42,7 @@ public:
         }
     }
 
-    ~PropertySectionComponent()
+    ~SectionComponent()
     {
         propertyComps.clear();
     }
@@ -127,7 +127,7 @@ private:
     int titleHeight;
     bool sectionIsOpen;
 
-    JUCE_DECLARE_NON_COPYABLE (PropertySectionComponent);
+    JUCE_DECLARE_NON_COPYABLE (SectionComponent);
 };
 
 //==============================================================================
@@ -144,7 +144,7 @@ public:
 
         for (int i = 0; i < sections.size(); ++i)
         {
-            PropertySectionComponent* const section = sections.getUnchecked(i);
+            SectionComponent* const section = sections.getUnchecked(i);
 
             section->setBounds (0, y, width, section->getPreferredHeight());
             y = section->getBottom();
@@ -165,17 +165,17 @@ public:
         sections.clear();
     }
 
-    void addSection (PropertySectionComponent* newSection)
+    void addSection (SectionComponent* newSection)
     {
         sections.add (newSection);
         addAndMakeVisible (newSection, 0);
     }
 
-    int getNumSections() const noexcept                             { return sections.size(); }
-    PropertySectionComponent* getSection (const int index) const    { return sections [index]; }
+    int getNumSections() const noexcept                     { return sections.size(); }
+    SectionComponent* getSection (const int index) const    { return sections [index]; }
 
 private:
-    OwnedArray<PropertySectionComponent> sections;
+    OwnedArray<SectionComponent> sections;
 
     JUCE_DECLARE_NON_COPYABLE (PropertyHolderComponent);
 };
@@ -229,7 +229,7 @@ void PropertyPanel::addProperties (const Array <PropertyComponent*>& newProperti
     if (propertyHolderComponent->getNumSections() == 0)
         repaint();
 
-    propertyHolderComponent->addSection (new PropertySectionComponent (String::empty, newProperties, true));
+    propertyHolderComponent->addSection (new SectionComponent (String::empty, newProperties, true));
     updatePropHolderLayout();
 }
 
@@ -242,7 +242,7 @@ void PropertyPanel::addSection (const String& sectionTitle,
     if (propertyHolderComponent->getNumSections() == 0)
         repaint();
 
-    propertyHolderComponent->addSection (new PropertySectionComponent (sectionTitle, newProperties, shouldBeOpen));
+    propertyHolderComponent->addSection (new SectionComponent (sectionTitle, newProperties, shouldBeOpen));
     updatePropHolderLayout();
 }
 
@@ -271,7 +271,7 @@ StringArray PropertyPanel::getSectionNames() const
 
     for (int i = 0; i < propertyHolderComponent->getNumSections(); ++i)
     {
-        PropertySectionComponent* const section = propertyHolderComponent->getSection (i);
+        SectionComponent* const section = propertyHolderComponent->getSection (i);
 
         if (section->getName().isNotEmpty())
             s.add (section->getName());
@@ -286,7 +286,7 @@ bool PropertyPanel::isSectionOpen (const int sectionIndex) const
 
     for (int i = 0; i < propertyHolderComponent->getNumSections(); ++i)
     {
-        PropertySectionComponent* const section = propertyHolderComponent->getSection (i);
+        SectionComponent* const section = propertyHolderComponent->getSection (i);
 
         if (section->getName().isNotEmpty())
         {
@@ -306,7 +306,7 @@ void PropertyPanel::setSectionOpen (const int sectionIndex, const bool shouldBeO
 
     for (int i = 0; i < propertyHolderComponent->getNumSections(); ++i)
     {
-        PropertySectionComponent* const section = propertyHolderComponent->getSection (i);
+        SectionComponent* const section = propertyHolderComponent->getSection (i);
 
         if (section->getName().isNotEmpty())
         {
@@ -327,7 +327,7 @@ void PropertyPanel::setSectionEnabled (const int sectionIndex, const bool should
 
     for (int i = 0; i < propertyHolderComponent->getNumSections(); ++i)
     {
-        PropertySectionComponent* const section = propertyHolderComponent->getSection (i);
+        SectionComponent* const section = propertyHolderComponent->getSection (i);
 
         if (section->getName().isNotEmpty())
         {
diff --git a/modules/juce_gui_basics/properties/juce_PropertyPanel.h b/modules/juce_gui_basics/properties/juce_PropertyPanel.h
index cc279ba32b..f421604f00 100644
--- a/modules/juce_gui_basics/properties/juce_PropertyPanel.h
+++ b/modules/juce_gui_basics/properties/juce_PropertyPanel.h
@@ -149,6 +149,8 @@ public:
     void resized();
 
 private:
+    class SectionComponent;
+
     Viewport viewport;
     class PropertyHolderComponent;
     PropertyHolderComponent* propertyHolderComponent;
diff --git a/modules/juce_gui_basics/properties/juce_TextPropertyComponent.cpp b/modules/juce_gui_basics/properties/juce_TextPropertyComponent.cpp
index 92ecaf6a5f..ba1babd117 100644
--- a/modules/juce_gui_basics/properties/juce_TextPropertyComponent.cpp
+++ b/modules/juce_gui_basics/properties/juce_TextPropertyComponent.cpp
@@ -23,11 +23,11 @@
   ==============================================================================
 */
 
-class TextPropLabel  : public Label
+class TextPropertyComponent::LabelComp  : public Label
 {
 public:
-    TextPropLabel (TextPropertyComponent& owner_,
-                   const int maxChars_, const bool isMultiline_)
+    LabelComp (TextPropertyComponent& owner_,
+               const int maxChars_, const bool isMultiline_)
         : Label (String::empty, String::empty),
           owner (owner_),
           maxChars (maxChars_),
@@ -100,7 +100,7 @@ String TextPropertyComponent::getText() const
 
 void TextPropertyComponent::createEditor (const int maxNumChars, const bool isMultiLine)
 {
-    addAndMakeVisible (textEditor = new TextPropLabel (*this, maxNumChars, isMultiLine));
+    addAndMakeVisible (textEditor = new LabelComp (*this, maxNumChars, isMultiLine));
 
     if (isMultiLine)
     {
diff --git a/modules/juce_gui_basics/properties/juce_TextPropertyComponent.h b/modules/juce_gui_basics/properties/juce_TextPropertyComponent.h
index ca78a1ccf5..39686849aa 100644
--- a/modules/juce_gui_basics/properties/juce_TextPropertyComponent.h
+++ b/modules/juce_gui_basics/properties/juce_TextPropertyComponent.h
@@ -75,20 +75,21 @@ public:
     */
     virtual void setText (const String& newText);
 
-    /** Returns the text that should be shown in the text editor.
-    */
+    /** Returns the text that should be shown in the text editor. */
     virtual String getText() const;
 
 
     //==============================================================================
     /** @internal */
     void refresh();
-    /** @internal */
-    void textWasEdited();
 
 private:
     ScopedPointer<Label> textEditor;
 
+    class LabelComp;
+    friend class LabelComp;
+
+    void textWasEdited();
     void createEditor (int maxNumChars, bool isMultiLine);
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TextPropertyComponent);
diff --git a/modules/juce_gui_basics/widgets/juce_ListBox.cpp b/modules/juce_gui_basics/widgets/juce_ListBox.cpp
index 6a89d385d6..242faee003 100644
--- a/modules/juce_gui_basics/widgets/juce_ListBox.cpp
+++ b/modules/juce_gui_basics/widgets/juce_ListBox.cpp
@@ -23,11 +23,11 @@
   ==============================================================================
 */
 
-class ListBoxRowComponent  : public Component,
-                             public TooltipClient
+class ListBox::RowComponent  : public Component,
+                               public TooltipClient
 {
 public:
-    ListBoxRowComponent (ListBox& owner_)
+    RowComponent (ListBox& owner_)
         : owner (owner_), row (-1),
           selected (false), isDragging (false), selectRowOnMouseUp (false)
     {
@@ -138,7 +138,7 @@ private:
     int row;
     bool selected, isDragging, selectRowOnMouseUp;
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ListBoxRowComponent);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RowComponent);
 };
 
 
@@ -157,12 +157,12 @@ public:
         content->setWantsKeyboardFocus (false);
     }
 
-    ListBoxRowComponent* getComponentForRow (const int row) const noexcept
+    RowComponent* getComponentForRow (const int row) const noexcept
     {
         return rows [row % jmax (1, rows.size())];
     }
 
-    ListBoxRowComponent* getComponentForRowIfOnscreen (const int row) const noexcept
+    RowComponent* getComponentForRowIfOnscreen (const int row) const noexcept
     {
         return (row >= firstIndex && row < firstIndex + rows.size())
                  ? getComponentForRow (row) : nullptr;
@@ -221,7 +221,7 @@ public:
 
             while (numNeeded > rows.size())
             {
-                ListBoxRowComponent* newRow = new ListBoxRowComponent (owner);
+                RowComponent* newRow = new RowComponent (owner);
                 rows.add (newRow);
                 getViewedComponent()->addAndMakeVisible (newRow);
             }
@@ -233,7 +233,7 @@ public:
             for (int i = 0; i < numNeeded; ++i)
             {
                 const int row = i + firstIndex;
-                ListBoxRowComponent* const rowComp = getComponentForRow (row);
+                RowComponent* const rowComp = getComponentForRow (row);
 
                 if (rowComp != nullptr)
                 {
@@ -320,7 +320,7 @@ public:
 
 private:
     ListBox& owner;
-    OwnedArray<ListBoxRowComponent> rows;
+    OwnedArray<RowComponent> rows;
     int firstIndex, firstWholeIndex, lastWholeIndex;
     bool hasUpdated;
 
@@ -619,7 +619,7 @@ int ListBox::getInsertionIndexForPosition (const int x, const int y) const noexc
 
 Component* ListBox::getComponentForRowNumber (const int row) const noexcept
 {
-    ListBoxRowComponent* const listRowComp = viewport->getComponentForRowIfOnscreen (row);
+    RowComponent* const listRowComp = viewport->getComponentForRowIfOnscreen (row);
     return listRowComp != nullptr ? static_cast <Component*> (listRowComp->customComponent) : nullptr;
 }
 
diff --git a/modules/juce_gui_basics/widgets/juce_ListBox.h b/modules/juce_gui_basics/widgets/juce_ListBox.h
index 234caf838b..14efea41e8 100644
--- a/modules/juce_gui_basics/widgets/juce_ListBox.h
+++ b/modules/juce_gui_basics/widgets/juce_ListBox.h
@@ -562,6 +562,7 @@ public:
 private:
     //==============================================================================
     class ListViewport;
+    class RowComponent;
     friend class ListViewport;
     friend class TableListBox;
     ListBoxModel* model;
diff --git a/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.cpp b/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.cpp
index df8f8c5279..7ed5b2afe8 100644
--- a/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.cpp
+++ b/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.cpp
@@ -23,7 +23,7 @@
   ==============================================================================
 */
 
-class DragOverlayComp   : public Component
+class TableHeaderComponent::DragOverlayComp   : public Component
 {
 public:
     DragOverlayComp (const Image& image_)
diff --git a/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.h b/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.h
index 6f628fd62e..da8cf1ecdc 100644
--- a/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.h
+++ b/modules/juce_gui_basics/widgets/juce_TableHeaderComponent.h
@@ -407,6 +407,7 @@ private:
     OwnedArray <ColumnInfo> columns;
     Array <Listener*> listeners;
     ScopedPointer <Component> dragOverlayComp;
+    class DragOverlayComp;
 
     bool columnsChanged, columnsResized, sortChanged, menuActive, stretchToFit;
     int columnIdBeingResized, columnIdBeingDragged, initialColumnWidth;
diff --git a/modules/juce_gui_basics/widgets/juce_TableListBox.cpp b/modules/juce_gui_basics/widgets/juce_TableListBox.cpp
index a0e4e4db7f..2515f61265 100644
--- a/modules/juce_gui_basics/widgets/juce_TableListBox.cpp
+++ b/modules/juce_gui_basics/widgets/juce_TableListBox.cpp
@@ -23,11 +23,11 @@
   ==============================================================================
 */
 
-class TableListRowComp   : public Component,
-                           public TooltipClient
+class TableListBox::RowComp   : public Component,
+                                public TooltipClient
 {
 public:
-    TableListRowComp (TableListBox& owner_)
+    RowComp (TableListBox& owner_)
         : owner (owner_), row (-1), isSelected (false)
     {
     }
@@ -208,15 +208,15 @@ private:
     int row;
     bool isSelected, isDragging, selectRowOnMouseUp;
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TableListRowComp);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (RowComp);
 };
 
 
 //==============================================================================
-class TableListBoxHeader  : public TableHeaderComponent
+class TableListBox::Header  : public TableHeaderComponent
 {
 public:
-    TableListBoxHeader (TableListBox& owner_)
+    Header (TableListBox& owner_)
         : owner (owner_)
     {
     }
@@ -248,7 +248,7 @@ private:
 
     enum { autoSizeColumnId = 0xf836743, autoSizeAllId = 0xf836744 };
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TableListBoxHeader);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Header);
 };
 
 //==============================================================================
@@ -260,7 +260,7 @@ TableListBox::TableListBox (const String& name, TableListBoxModel* const model_)
 {
     ListBox::model = this;
 
-    setHeader (new TableListBoxHeader (*this));
+    setHeader (new Header (*this));
 }
 
 TableListBox::~TableListBox()
@@ -342,7 +342,7 @@ Rectangle<int> TableListBox::getCellPosition (const int columnId, const int rowN
 
 Component* TableListBox::getCellComponent (int columnId, int rowNumber) const
 {
-    TableListRowComp* const rowComp = dynamic_cast <TableListRowComp*> (getComponentForRowNumber (rowNumber));
+    RowComp* const rowComp = dynamic_cast <RowComp*> (getComponentForRowNumber (rowNumber));
     return rowComp != nullptr ? rowComp->findChildComponentForColumn (columnId) : 0;
 }
 
@@ -378,9 +378,9 @@ void TableListBox::paintListBoxItem (int, Graphics&, int, int, bool)
 Component* TableListBox::refreshComponentForRow (int rowNumber, bool isRowSelected_, Component* existingComponentToUpdate)
 {
     if (existingComponentToUpdate == nullptr)
-        existingComponentToUpdate = new TableListRowComp (*this);
+        existingComponentToUpdate = new RowComp (*this);
 
-    static_cast <TableListRowComp*> (existingComponentToUpdate)->update (rowNumber, isRowSelected_);
+    static_cast <RowComp*> (existingComponentToUpdate)->update (rowNumber, isRowSelected_);
 
     return existingComponentToUpdate;
 }
@@ -456,7 +456,7 @@ void TableListBox::updateColumnComponents() const
 
     for (int i = firstRow + getNumRowsOnScreen() + 2; --i >= firstRow;)
     {
-        TableListRowComp* const rowComp = dynamic_cast <TableListRowComp*> (getComponentForRowNumber (i));
+        RowComp* const rowComp = dynamic_cast <RowComp*> (getComponentForRowNumber (i));
 
         if (rowComp != nullptr)
             rowComp->resized();
diff --git a/modules/juce_gui_basics/widgets/juce_TableListBox.h b/modules/juce_gui_basics/widgets/juce_TableListBox.h
index 19785a921b..210bfc40ad 100644
--- a/modules/juce_gui_basics/widgets/juce_TableListBox.h
+++ b/modules/juce_gui_basics/widgets/juce_TableListBox.h
@@ -324,6 +324,9 @@ public:
 
 private:
     //==============================================================================
+    class Header;
+    class RowComp;
+
     TableHeaderComponent* header;
     TableListBoxModel* model;
     int columnIdNowBeingDragged;
diff --git a/modules/juce_gui_basics/widgets/juce_TextEditor.cpp b/modules/juce_gui_basics/widgets/juce_TextEditor.cpp
index 479824336c..53d36b419f 100644
--- a/modules/juce_gui_basics/widgets/juce_TextEditor.cpp
+++ b/modules/juce_gui_basics/widgets/juce_TextEditor.cpp
@@ -857,7 +857,7 @@ private:
 //==============================================================================
 class TextEditor::TextHolderComponent  : public Component,
                                          public Timer,
-                                         public ValueListener
+                                         private ValueListener
 {
 public:
     TextHolderComponent (TextEditor& owner_)
diff --git a/modules/juce_gui_basics/widgets/juce_Toolbar.cpp b/modules/juce_gui_basics/widgets/juce_Toolbar.cpp
index 0cd09194dc..8f7bb686fd 100644
--- a/modules/juce_gui_basics/widgets/juce_Toolbar.cpp
+++ b/modules/juce_gui_basics/widgets/juce_Toolbar.cpp
@@ -26,10 +26,10 @@
 const char* const Toolbar::toolbarDragDescriptor = "_toolbarItem_";
 
 //==============================================================================
-class ToolbarSpacerComp  : public ToolbarItemComponent
+class Toolbar::Spacer  : public ToolbarItemComponent
 {
 public:
-    ToolbarSpacerComp (const int itemId_, const float fixedSize_, const bool drawBar_)
+    Spacer (const int itemId_, const float fixedSize_, const bool drawBar_)
         : ToolbarItemComponent (itemId_, String::empty, false),
           fixedSize (fixedSize_),
           drawBar (drawBar_)
@@ -143,7 +143,7 @@ private:
     const float fixedSize;
     const bool drawBar;
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ToolbarSpacerComp);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Spacer);
 };
 
 //==============================================================================
@@ -159,7 +159,7 @@ public:
         {
             ToolbarItemComponent* const tc = owner_.items.getUnchecked(i);
 
-            if (dynamic_cast <ToolbarSpacerComp*> (tc) == nullptr && ! tc->isVisible())
+            if (dynamic_cast <Spacer*> (tc) == nullptr && ! tc->isVisible())
             {
                 oldIndexes.insert (0, i);
                 addAndMakeVisible (tc, 0);
@@ -274,11 +274,11 @@ void Toolbar::clear()
 ToolbarItemComponent* Toolbar::createItem (ToolbarItemFactory& factory, const int itemId)
 {
     if (itemId == ToolbarItemFactory::separatorBarId)
-        return new ToolbarSpacerComp (itemId, 0.1f, true);
+        return new Spacer (itemId, 0.1f, true);
     else if (itemId == ToolbarItemFactory::spacerId)
-        return new ToolbarSpacerComp (itemId, 0.5f, false);
+        return new Spacer (itemId, 0.5f, false);
     else if (itemId == ToolbarItemFactory::flexibleSpacerId)
-        return new ToolbarSpacerComp (itemId, 0, false);
+        return new Spacer (itemId, 0, false);
 
     return factory.createItem (itemId);
 }
@@ -451,7 +451,7 @@ void Toolbar::updateAllItemPositions (const bool animate)
 
             tc->setStyle (toolbarStyle);
 
-            ToolbarSpacerComp* const spacer = dynamic_cast <ToolbarSpacerComp*> (tc);
+            Spacer* const spacer = dynamic_cast <Spacer*> (tc);
 
             int preferredSize = 1, minSize = 1, maxSize = 1;
 
@@ -647,12 +647,12 @@ void Toolbar::mouseDown (const MouseEvent&)
 }
 
 //==============================================================================
-class ToolbarCustomisationDialog   : public DialogWindow
+class Toolbar::CustomisationDialog   : public DialogWindow
 {
 public:
-    ToolbarCustomisationDialog (ToolbarItemFactory& factory,
-                                Toolbar* const toolbar_,
-                                const int optionFlags)
+    CustomisationDialog (ToolbarItemFactory& factory,
+                         Toolbar* const toolbar_,
+                         const int optionFlags)
         : DialogWindow (TRANS("Add/remove items from toolbar"), Colours::white, true, true),
           toolbar (toolbar_)
     {
@@ -662,7 +662,7 @@ public:
         positionNearBar();
     }
 
-    ~ToolbarCustomisationDialog()
+    ~CustomisationDialog()
     {
         toolbar->setEditingActive (false);
     }
@@ -820,6 +820,6 @@ void Toolbar::showCustomisationDialog (ToolbarItemFactory& factory, const int op
 {
     setEditingActive (true);
 
-    (new ToolbarCustomisationDialog (factory, this, optionFlags))
+    (new CustomisationDialog (factory, this, optionFlags))
         ->enterModalState (true, 0, true);
 }
diff --git a/modules/juce_gui_basics/widgets/juce_Toolbar.h b/modules/juce_gui_basics/widgets/juce_Toolbar.h
index d49ec676e2..a07d2d2418 100644
--- a/modules/juce_gui_basics/widgets/juce_Toolbar.h
+++ b/modules/juce_gui_basics/widgets/juce_Toolbar.h
@@ -275,8 +275,6 @@ public:
     /** @internal */
     void resized();
     /** @internal */
-    void buttonClicked (Button*);
-    /** @internal */
     void mouseDown (const MouseEvent&);
     /** @internal */
     bool isInterestedInDragSource (const SourceDetails&);
@@ -290,6 +288,8 @@ public:
     void updateAllItemPositions (bool animate);
     /** @internal */
     static ToolbarItemComponent* createItem (ToolbarItemFactory&, int itemId);
+    /** @internal */
+    static const char* const toolbarDragDescriptor;
 
 private:
     //==============================================================================
@@ -299,10 +299,10 @@ private:
     class MissingItemsComponent;
     friend class MissingItemsComponent;
     OwnedArray <ToolbarItemComponent> items;
+    class Spacer;
+    class CustomisationDialog;
 
-    friend class ItemDragAndDropOverlayComponent;
-    static const char* const toolbarDragDescriptor;
-
+    void buttonClicked (Button*);
     void addItemInternal (ToolbarItemFactory& factory, int itemId, int insertIndex);
 
     ToolbarItemComponent* getNextActiveComponent (int index, int delta) const;
diff --git a/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.cpp b/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.cpp
index e1ebd2f965..92792d9051 100644
--- a/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.cpp
+++ b/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.cpp
@@ -32,7 +32,7 @@ ToolbarItemFactory::~ToolbarItemFactory()
 }
 
 //==============================================================================
-class ItemDragAndDropOverlayComponent    : public Component
+class ToolbarItemComponent::ItemDragAndDropOverlayComponent    : public Component
 {
 public:
     ItemDragAndDropOverlayComponent()
diff --git a/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.h b/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.h
index a5112dfd54..562aa428d8 100644
--- a/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.h
+++ b/modules/juce_gui_basics/widgets/juce_ToolbarItemComponent.h
@@ -194,6 +194,7 @@ public:
 
 private:
     friend class Toolbar;
+    class ItemDragAndDropOverlayComponent;
     friend class ItemDragAndDropOverlayComponent;
     const int itemId;
     ToolbarEditingMode mode;
diff --git a/modules/juce_gui_basics/widgets/juce_TreeView.cpp b/modules/juce_gui_basics/widgets/juce_TreeView.cpp
index 6c4163c3e8..b9bba7c657 100644
--- a/modules/juce_gui_basics/widgets/juce_TreeView.cpp
+++ b/modules/juce_gui_basics/widgets/juce_TreeView.cpp
@@ -23,12 +23,12 @@
   ==============================================================================
 */
 
-class TreeViewContentComponent  : public Component,
-                                  public TooltipClient,
-                                  public AsyncUpdater
+class TreeView::ContentComponent  : public Component,
+                                    public TooltipClient,
+                                    public AsyncUpdater
 {
 public:
-    TreeViewContentComponent (TreeView& owner_)
+    ContentComponent (TreeView& owner_)
         : owner (owner_),
           buttonUnderMouse (nullptr),
           isDragging (false)
@@ -403,7 +403,7 @@ private:
         owner.recalculateIfNeeded();
     }
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TreeViewContentComponent);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ContentComponent);
 };
 
 //==============================================================================
@@ -414,7 +414,7 @@ public:
 
     void updateComponents (const bool triggerResize)
     {
-        TreeViewContentComponent* const tvc = getContentComp();
+        ContentComponent* const tvc = getContentComp();
 
         if (tvc != nullptr)
         {
@@ -434,9 +434,9 @@ public:
         updateComponents (hasScrolledSideways);
     }
 
-    TreeViewContentComponent* getContentComp() const noexcept
+    ContentComponent* getContentComp() const noexcept
     {
-        return static_cast <TreeViewContentComponent*> (getViewedComponent());
+        return static_cast <ContentComponent*> (getViewedComponent());
     }
 
     bool keyPressed (const KeyPress& key)
@@ -467,7 +467,7 @@ TreeView::TreeView (const String& name)
       openCloseButtonsVisible (true)
 {
     addAndMakeVisible (viewport);
-    viewport->setViewedComponent (new TreeViewContentComponent (*this));
+    viewport->setViewedComponent (new ContentComponent (*this));
     setWantsKeyboardFocus (true);
 }
 
@@ -605,7 +605,7 @@ TreeViewItem* TreeView::getItemOnRow (int index) const
 
 TreeViewItem* TreeView::getItemAt (int y) const noexcept
 {
-    TreeViewContentComponent* const tc = viewport->getContentComp();
+    ContentComponent* const tc = viewport->getContentComp();
     Rectangle<int> pos;
     return tc->findItemAt (tc->getLocalPoint (this, Point<int> (0, y)).y, pos);
 }
diff --git a/modules/juce_gui_basics/widgets/juce_TreeView.h b/modules/juce_gui_basics/widgets/juce_TreeView.h
index f25c020771..d3d23e0dd3 100644
--- a/modules/juce_gui_basics/widgets/juce_TreeView.h
+++ b/modules/juce_gui_basics/widgets/juce_TreeView.h
@@ -508,7 +508,6 @@ private:
     unsigned int openness   : 2;
 
     friend class TreeView;
-    friend class TreeViewContentComponent;
 
     void updatePositions (int newY);
     int getIndentX() const noexcept;
@@ -791,14 +790,16 @@ public:
     void itemDropped (const SourceDetails&);
 
 private:
-    friend class TreeViewItem;
-    friend class TreeViewContentComponent;
+    class ContentComponent;
     class TreeViewport;
     class InsertPointHighlight;
     class TargetGroupHighlight;
+    friend class TreeViewItem;
+    friend class ContentComponent;
     friend class ScopedPointer<TreeViewport>;
     friend class ScopedPointer<InsertPointHighlight>;
     friend class ScopedPointer<TargetGroupHighlight>;
+
     ScopedPointer<TreeViewport> viewport;
     CriticalSection nodeAlterationLock;
     TreeViewItem* rootItem;
@@ -818,8 +819,8 @@ private:
     struct InsertPoint;
     void showDragHighlight (const InsertPoint&) noexcept;
     void hideDragHighlight() noexcept;
-    void handleDrag (const StringArray& files, const SourceDetails&);
-    void handleDrop (const StringArray& files, const SourceDetails&);
+    void handleDrag (const StringArray&, const SourceDetails&);
+    void handleDrop (const StringArray&, const SourceDetails&);
     void toggleOpenSelectedItem();
     void moveOutOfSelectedItem();
     void moveIntoSelectedItem();
diff --git a/modules/juce_gui_basics/windows/juce_TopLevelWindow.cpp b/modules/juce_gui_basics/windows/juce_TopLevelWindow.cpp
index 1b7e4012a2..7bac3a92bd 100644
--- a/modules/juce_gui_basics/windows/juce_TopLevelWindow.cpp
+++ b/modules/juce_gui_basics/windows/juce_TopLevelWindow.cpp
@@ -24,8 +24,8 @@
 */
 
 /** Keeps track of the active top level window. */
-class TopLevelWindowManager  : public Timer,
-                               public DeletedAtShutdown
+class TopLevelWindowManager  : private Timer,
+                               private DeletedAtShutdown
 {
 public:
     //==============================================================================
@@ -41,7 +41,12 @@ public:
 
     juce_DeclareSingleton_SingleThreaded_Minimal (TopLevelWindowManager);
 
-    void timerCallback()
+    void checkFocusAsync()
+    {
+        startTimer (10);
+    }
+
+    void checkFocus()
     {
         startTimer (jmin (1731, getTimerInterval() * 2));
 
@@ -80,14 +85,14 @@ public:
     bool addWindow (TopLevelWindow* const w)
     {
         windows.add (w);
-        startTimer (10);
+        checkFocusAsync();
 
         return isWindowActive (w);
     }
 
     void removeWindow (TopLevelWindow* const w)
     {
-        startTimer (10);
+        checkFocusAsync();
 
         if (currentActive == w)
             currentActive = nullptr;
@@ -103,6 +108,11 @@ public:
 private:
     TopLevelWindow* currentActive;
 
+    void timerCallback()
+    {
+        checkFocus();
+    }
+
     bool isWindowActive (TopLevelWindow* const tlw) const
     {
         return (tlw == currentActive
@@ -119,8 +129,10 @@ juce_ImplementSingleton_SingleThreaded (TopLevelWindowManager)
 void juce_CheckCurrentlyFocusedTopLevelWindow();
 void juce_CheckCurrentlyFocusedTopLevelWindow()
 {
-    if (TopLevelWindowManager::getInstanceWithoutCreating() != nullptr)
-        TopLevelWindowManager::getInstanceWithoutCreating()->startTimer (20);
+    TopLevelWindowManager* const wm = TopLevelWindowManager::getInstanceWithoutCreating();
+
+    if (wm != nullptr)
+        wm->checkFocusAsync();
 }
 
 //==============================================================================
@@ -152,10 +164,12 @@ TopLevelWindow::~TopLevelWindow()
 //==============================================================================
 void TopLevelWindow::focusOfChildComponentChanged (FocusChangeType)
 {
+    TopLevelWindowManager* const wm = TopLevelWindowManager::getInstance();
+
     if (hasKeyboardFocus (true))
-        TopLevelWindowManager::getInstance()->timerCallback();
+        wm->checkFocus();
     else
-        TopLevelWindowManager::getInstance()->startTimer (10);
+        wm->checkFocusAsync();
 }
 
 void TopLevelWindow::setWindowActive (const bool isNowActive)
diff --git a/modules/juce_gui_extra/misc/juce_ColourSelector.cpp b/modules/juce_gui_extra/misc/juce_ColourSelector.cpp
index 098522362f..c297d78182 100644
--- a/modules/juce_gui_extra/misc/juce_ColourSelector.cpp
+++ b/modules/juce_gui_extra/misc/juce_ColourSelector.cpp
@@ -23,7 +23,7 @@
   ==============================================================================
 */
 
-class ColourComponentSlider  : public Slider
+class ColourSelector::ColourComponentSlider  : public Slider
 {
 public:
     ColourComponentSlider (const String& name)
@@ -47,7 +47,7 @@ private:
 };
 
 //==============================================================================
-class ColourSpaceMarker  : public Component
+class ColourSelector::ColourSpaceMarker  : public Component
 {
 public:
     ColourSpaceMarker()
@@ -71,13 +71,8 @@ private:
 class ColourSelector::ColourSpaceView  : public Component
 {
 public:
-    ColourSpaceView (ColourSelector& owner_,
-                     float& h_, float& s_, float& v_,
-                     const int edgeSize)
-        : owner (owner_),
-          h (h_), s (s_), v (v_),
-          lastHue (0.0f),
-          edge (edgeSize)
+    ColourSpaceView (ColourSelector& owner_, float& h_, float& s_, float& v_, const int edgeSize)
+        : owner (owner_), h (h_), s (s_), v (v_), lastHue (0.0f), edge (edgeSize)
     {
         addAndMakeVisible (&marker);
         setMouseCursor (MouseCursor::CrosshairCursor);
@@ -100,7 +95,6 @@ public:
                 for (int x = 0; x < width; ++x)
                 {
                     const float sat = x / (float) width;
-
                     pixels.setPixelColour (x, y, Colour (h, sat, val, 1.0f));
                 }
             }
@@ -163,7 +157,7 @@ private:
 };
 
 //==============================================================================
-class HueSelectorMarker  : public Component
+class ColourSelector::HueSelectorMarker  : public Component
 {
 public:
     HueSelectorMarker()
@@ -173,14 +167,17 @@ public:
 
     void paint (Graphics& g)
     {
+        const float w = (float) getWidth();
+        const float h = (float) getHeight();
+
         Path p;
         p.addTriangle (1.0f, 1.0f,
-                       getWidth() * 0.3f, getHeight() * 0.5f,
-                       1.0f, getHeight() - 1.0f);
+                       w * 0.3f, h * 0.5f,
+                       1.0f, h - 1.0f);
 
-        p.addTriangle (getWidth() - 1.0f, 1.0f,
-                       getWidth() * 0.7f, getHeight() * 0.5f,
-                       getWidth() - 1.0f, getHeight() - 1.0f);
+        p.addTriangle (w - 1.0f, 1.0f,
+                       w * 0.7f, h * 0.5f,
+                       w - 1.0f, h - 1.0f);
 
         g.setColour (Colours::white.withAlpha (0.75f));
         g.fillPath (p);
@@ -197,13 +194,8 @@ private:
 class ColourSelector::HueSelectorComp  : public Component
 {
 public:
-    HueSelectorComp (ColourSelector& owner_,
-                     float& h_, float& s_, float& v_,
-                     const int edgeSize)
-        : owner (owner_),
-          h (h_), s (s_), v (v_),
-          lastHue (0.0f),
-          edge (edgeSize)
+    HueSelectorComp (ColourSelector& owner_, float& h_, float& s_, float& v_, const int edgeSize)
+        : owner (owner_), h (h_), s (s_), v (v_), edge (edgeSize)
     {
         addAndMakeVisible (&marker);
     }
@@ -247,7 +239,6 @@ private:
     float& h;
     float& s;
     float& v;
-    float lastHue;
     HueSelectorMarker marker;
     const int edge;
 
diff --git a/modules/juce_gui_extra/misc/juce_ColourSelector.h b/modules/juce_gui_extra/misc/juce_ColourSelector.h
index 91f39272c0..64a626d640 100644
--- a/modules/juce_gui_extra/misc/juce_ColourSelector.h
+++ b/modules/juce_gui_extra/misc/juce_ColourSelector.h
@@ -134,6 +134,9 @@ private:
     class ColourSpaceView;
     class HueSelectorComp;
     class SwatchComponent;
+    class ColourComponentSlider;
+    class ColourSpaceMarker;
+    class HueSelectorMarker;
     friend class ColourSpaceView;
     friend class ScopedPointer<ColourSpaceView>;
     friend class HueSelectorComp;
diff --git a/modules/juce_gui_extra/misc/juce_KeyMappingEditorComponent.cpp b/modules/juce_gui_extra/misc/juce_KeyMappingEditorComponent.cpp
index 5cc1f3f450..490e8991c6 100644
--- a/modules/juce_gui_extra/misc/juce_KeyMappingEditorComponent.cpp
+++ b/modules/juce_gui_extra/misc/juce_KeyMappingEditorComponent.cpp
@@ -347,8 +347,8 @@ private:
 
 //==============================================================================
 class KeyMappingEditorComponent::TopLevelItem   : public TreeViewItem,
-                                                  public ChangeListener,
-                                                  public ButtonListener
+                                                  public ButtonListener,
+                                                  private ChangeListener
 {
 public:
     TopLevelItem (KeyMappingEditorComponent& owner_)
diff --git a/modules/juce_gui_extra/misc/juce_SplashScreen.h b/modules/juce_gui_extra/misc/juce_SplashScreen.h
index 58414acbf5..689ca0baae 100644
--- a/modules/juce_gui_extra/misc/juce_SplashScreen.h
+++ b/modules/juce_gui_extra/misc/juce_SplashScreen.h
@@ -53,7 +53,7 @@
     @endcode
 */
 class JUCE_API  SplashScreen  : public Component,
-                                public Timer,
+                                private Timer,
                                 private DeletedAtShutdown
 {
 public:
@@ -129,9 +129,7 @@ public:
 
     //==============================================================================
     /** @internal */
-    void paint (Graphics& g);
-    /** @internal */
-    void timerCallback();
+    void paint (Graphics&);
 
 private:
     //==============================================================================
@@ -139,6 +137,8 @@ private:
     Time earliestTimeToDelete;
     int originalClickCounter;
 
+    void timerCallback();
+
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SplashScreen);
 };
 
diff --git a/modules/juce_gui_extra/misc/juce_WebBrowserComponent.h b/modules/juce_gui_extra/misc/juce_WebBrowserComponent.h
index d3d701467a..d26f6a2aec 100644
--- a/modules/juce_gui_extra/misc/juce_WebBrowserComponent.h
+++ b/modules/juce_gui_extra/misc/juce_WebBrowserComponent.h
@@ -28,10 +28,6 @@
 
 #if JUCE_WEB_BROWSER || DOXYGEN
 
-#if ! DOXYGEN
- class WebBrowserComponentInternal;
-#endif
-
 //==============================================================================
 /**
     A component that displays an embedded web browser.
@@ -114,7 +110,8 @@ public:
 
 private:
     //==============================================================================
-    WebBrowserComponentInternal* browser;
+    class Pimpl;
+    Pimpl* browser;
     bool blankPageShown, unloadPageWhenBrowserIsHidden;
     String lastURL;
     StringArray lastHeaders;
diff --git a/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm b/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm
index eb707c4311..9dc708b8bd 100644
--- a/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm
+++ b/modules/juce_gui_extra/native/juce_mac_WebBrowserComponent.mm
@@ -116,7 +116,7 @@ namespace juce {
 #endif
 
 //==============================================================================
-class WebBrowserComponentInternal
+class WebBrowserComponent::Pimpl
                                    #if JUCE_MAC
                                     : public NSViewComponent
                                    #else
@@ -124,7 +124,7 @@ class WebBrowserComponentInternal
                                    #endif
 {
 public:
-    WebBrowserComponentInternal (WebBrowserComponent* owner)
+    Pimpl (WebBrowserComponent* owner)
     {
        #if JUCE_MAC
         webView = [[WebView alloc] initWithFrame: NSMakeRect (0, 0, 100.0f, 100.0f)
@@ -148,7 +148,7 @@ public:
        #endif
     }
 
-    ~WebBrowserComponentInternal()
+    ~Pimpl()
     {
        #if JUCE_MAC
         [webView setPolicyDelegate: nil];
@@ -241,7 +241,7 @@ WebBrowserComponent::WebBrowserComponent (const bool unloadPageWhenBrowserIsHidd
 {
     setOpaque (true);
 
-    addAndMakeVisible (browser = new WebBrowserComponentInternal (this));
+    addAndMakeVisible (browser = new Pimpl (this));
 }
 
 WebBrowserComponent::~WebBrowserComponent()
diff --git a/modules/juce_gui_extra/native/juce_win32_WebBrowserComponent.cpp b/modules/juce_gui_extra/native/juce_win32_WebBrowserComponent.cpp
index 32fbbcbcc2..d4e7ba9ae1 100644
--- a/modules/juce_gui_extra/native/juce_win32_WebBrowserComponent.cpp
+++ b/modules/juce_gui_extra/native/juce_win32_WebBrowserComponent.cpp
@@ -24,17 +24,17 @@
 */
 
 //==============================================================================
-class WebBrowserComponentInternal   : public ActiveXControlComponent
+class WebBrowserComponent::Pimpl   : public ActiveXControlComponent
 {
 public:
-    WebBrowserComponentInternal()
-        : browser (nullptr),
-          connectionPoint (nullptr),
-          adviseCookie (0)
+    Pimpl()
+      : browser (nullptr),
+        connectionPoint (nullptr),
+        adviseCookie (0)
     {
     }
 
-    ~WebBrowserComponentInternal()
+    ~Pimpl()
     {
         if (connectionPoint != nullptr)
             connectionPoint->Unadvise (adviseCookie);
@@ -183,7 +183,7 @@ private:
         JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (EventHandler);
     };
 
-    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (WebBrowserComponentInternal);
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Pimpl);
 };
 
 
@@ -194,7 +194,7 @@ WebBrowserComponent::WebBrowserComponent (const bool unloadPageWhenBrowserIsHidd
       unloadPageWhenBrowserIsHidden (unloadPageWhenBrowserIsHidden_)
 {
     setOpaque (true);
-    addAndMakeVisible (browser = new WebBrowserComponentInternal());
+    addAndMakeVisible (browser = new Pimpl());
 }
 
 WebBrowserComponent::~WebBrowserComponent()
diff --git a/modules/juce_video/native/juce_win32_DirectShowComponent.cpp b/modules/juce_video/native/juce_win32_DirectShowComponent.cpp
index bdc183d291..217ea057d9 100644
--- a/modules/juce_video/native/juce_win32_DirectShowComponent.cpp
+++ b/modules/juce_video/native/juce_win32_DirectShowComponent.cpp
@@ -492,7 +492,7 @@ private:
     ScopedPointer <DirectShowHelpers::VideoRenderer> videoRenderer;
 
     //======================================================================
-    class NativeWindowClass   : public DeletedAtShutdown
+    class NativeWindowClass   : private DeletedAtShutdown
     {
     private:
         NativeWindowClass()