Adde some missing JUCE_API annotations

modules/juce_gui_basics/components/juce_ModalComponentManager.h

@@ -49,7 +49,7 @@ public:
         For some quick ways of creating callback objects, see the ModalCallbackFunction class.
         @see ModalCallbackFunction
     */
-    class Callback
+    class JUCE_API  Callback
     {
     public:
         /** */

modules/juce_opengl/opengl/juce_OpenGLShaderProgram.cpp

@@ -22,8 +22,7 @@
   ==============================================================================
 */
 
-OpenGLShaderProgram::OpenGLShaderProgram (const OpenGLContext& c) noexcept
-    : context (c), programID (0)
+OpenGLShaderProgram::OpenGLShaderProgram (const OpenGLContext& c) noexcept  : context (c)
 {
 }
 

modules/juce_opengl/opengl/juce_OpenGLShaderProgram.h

@@ -31,7 +31,10 @@
 class JUCE_API  OpenGLShaderProgram
 {
 public:
+    /** Creates a shader for use in a particular GL context. */
     OpenGLShaderProgram (const OpenGLContext&) noexcept;
+
+    /** Destructor. */
     ~OpenGLShaderProgram() noexcept;
 
     /** Returns the version of GLSL that the current context supports.
@@ -124,7 +127,7 @@ public:
         Be careful not to call the set() functions unless the appropriate program
         is loaded into the current context.
     */
-    struct Uniform
+    struct JUCE_API  Uniform
     {
         /** Initialises a uniform.
             The program must have been successfully linked when this
@@ -169,13 +172,13 @@ public:
         After a program has been linked, you can create Attribute objects to let you
         set the attributes that your vertex shaders use.
     */
-    struct Attribute
+    struct JUCE_API  Attribute
     {
         /** Initialises an attribute.
             The program must have been successfully linked when this
             constructor is called.
         */
-        Attribute (const OpenGLShaderProgram& program, const char* attributeName);
+        Attribute (const OpenGLShaderProgram&, const char* attributeName);
 
         /** The attribute's ID number.
             If the uniform couldn't be found, this value will be < 0.
@@ -188,7 +191,7 @@ public:
 
 private:
     const OpenGLContext& context;
-    mutable GLuint programID;
+    mutable GLuint programID = 0;
     String errorLog;
 
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (OpenGLShaderProgram)

modules/juce_opengl/utils/juce_OpenGLAppComponent.cpp

@@ -22,7 +22,7 @@
   ==============================================================================
 */
 
-OpenGLAppComponent::OpenGLAppComponent()   : frameCounter (0)
+OpenGLAppComponent::OpenGLAppComponent()
 {
     setOpaque (true);
     openGLContext.setRenderer (this);

modules/juce_opengl/utils/juce_OpenGLAppComponent.h

@@ -33,11 +33,13 @@
     paint() and mouse-handling. The base class provides some simple abstractions
     to take care of continuously repainting itself.
 */
-class OpenGLAppComponent   : public Component,
-                             private OpenGLRenderer
+class JUCE_API  OpenGLAppComponent   : public Component,
+                                       private OpenGLRenderer
 {
 public:
     OpenGLAppComponent();
+
+    /** Destructor. */
     ~OpenGLAppComponent();
 
     /** Returns the number of times that the render method has been called since
@@ -45,6 +47,9 @@ public:
     */
     int getFrameCounter() const noexcept        { return frameCounter; }
 
+    /** This must be called from your subclass's destructor, to shut down
+        the GL system and stop it calling render() before your class is destroyed.
+    */
     void shutdownOpenGL();
 
     /** Implement this method to set up any GL objects that you need for rendering.
@@ -57,16 +62,17 @@ public:
     */
     virtual void shutdown() = 0;
 
-    /**
+    /** Called to render your openGL.
+        @see OpenGLRenderer::render()
     */
     virtual void render() = 0;
 
+    /** The GL context */
     OpenGLContext openGLContext;
 
 private:
     //==============================================================================
-
-    int frameCounter;
+    int frameCounter = 0;
 
     void newOpenGLContextCreated() override;
     void renderOpenGL() override;