diff --git a/distrho/extra/ExternalWindow.hpp b/distrho/extra/ExternalWindow.hpp
index c4b3c886..53b0f541 100644
--- a/distrho/extra/ExternalWindow.hpp
+++ b/distrho/extra/ExternalWindow.hpp
@@ -297,7 +297,7 @@ public:
     {
         DISTRHO_SAFE_ASSERT_UINT2_RETURN(width > 1 && height > 1, width, height,);
 
-        if (pData.width == width || pData.height == height)
+        if (pData.width == width && pData.height == height)
             return;
 
         pData.width = width;
diff --git a/examples/EmbedExternalUI/DistrhoPluginInfo.h b/examples/EmbedExternalUI/DistrhoPluginInfo.h
index cae5e2c2..b3cf1331 100644
--- a/examples/EmbedExternalUI/DistrhoPluginInfo.h
+++ b/examples/EmbedExternalUI/DistrhoPluginInfo.h
@@ -30,7 +30,8 @@
 #define DISTRHO_UI_USER_RESIZABLE      1
 
 enum Parameters {
-    kParameterLevel = 0,
+    kParameterWidth = 0,
+    kParameterHeight,
     kParameterCount
 };
 
diff --git a/examples/EmbedExternalUI/EmbedExternalExamplePlugin.cpp b/examples/EmbedExternalUI/EmbedExternalExamplePlugin.cpp
index 12621032..a88b3d9e 100644
--- a/examples/EmbedExternalUI/EmbedExternalExamplePlugin.cpp
+++ b/examples/EmbedExternalUI/EmbedExternalExamplePlugin.cpp
@@ -28,7 +28,8 @@ class EmbedExternalExamplePlugin : public Plugin
 public:
     EmbedExternalExamplePlugin()
         : Plugin(kParameterCount, 0, 0),
-          fValue(0.0f)
+          fWidth(512.0f),
+          fHeight(256.0f)
     {
     }
 
@@ -104,15 +105,27 @@ protected:
     */
     void initParameter(uint32_t index, Parameter& parameter) override
     {
-        if (index != 0)
-            return;
-
-        parameter.hints      = kParameterIsAutomable|kParameterIsInteger;
-        parameter.ranges.def = 0.0f;
-        parameter.ranges.min = 0.0f;
-        parameter.ranges.max = 100.0f;
-        parameter.name   = "Value";
-        parameter.symbol = "value";
+        switch (index)
+        {
+        case kParameterWidth:
+            parameter.hints      = kParameterIsAutomable|kParameterIsInteger;
+            parameter.ranges.def = 512.0f;
+            parameter.ranges.min = 256.0f;
+            parameter.ranges.max = 4096.0f;
+            parameter.name   = "Width";
+            parameter.symbol = "width";
+            parameter.unit   = "px";
+            break;
+        case kParameterHeight:
+            parameter.hints      = kParameterIsAutomable|kParameterIsInteger;
+            parameter.ranges.def = 256.0f;
+            parameter.ranges.min = 256.0f;
+            parameter.ranges.max = 4096.0f;
+            parameter.name   = "Height";
+            parameter.symbol = "height";
+            parameter.unit   = "px";
+            break;
+        }
     }
 
    /* --------------------------------------------------------------------------------------------------------
@@ -124,10 +137,15 @@ protected:
     */
     float getParameterValue(uint32_t index) const override
     {
-        if (index != 0)
-            return 0.0f;
+        switch (index)
+        {
+        case kParameterWidth:
+            return fWidth;
+        case kParameterHeight:
+            return fHeight;
+        }
 
-        return fValue;
+        return 0.0f;
 
     }
 
@@ -139,10 +157,15 @@ protected:
     */
     void setParameterValue(uint32_t index, float value) override
     {
-        if (index != 0)
-            return;
-
-        fValue = value;
+        switch (index)
+        {
+        case kParameterWidth:
+            fWidth = value;
+            break;
+        case kParameterHeight:
+            fHeight = value;
+            break;
+        }
     }
 
    /* --------------------------------------------------------------------------------------------------------
@@ -169,7 +192,7 @@ protected:
 
 private:
     // Parameters
-    float fValue;
+    float fWidth, fHeight;
 
    /**
       Set our plugin class as non-copyable and add a leak detector just in case.
diff --git a/examples/EmbedExternalUI/EmbedExternalExampleUI.cpp b/examples/EmbedExternalUI/EmbedExternalExampleUI.cpp
index 1c3aa266..1e80bd1c 100644
--- a/examples/EmbedExternalUI/EmbedExternalExampleUI.cpp
+++ b/examples/EmbedExternalUI/EmbedExternalExampleUI.cpp
@@ -61,6 +61,7 @@ class EmbedExternalExampleUI : public UI
     NSView* fView;
     NSExternalWindow* fWindow;
 #elif defined(DISTRHO_OS_WINDOWS)
+    ::HWND fWindow;
 #else
     ::Display* fDisplay;
     ::Window fWindow;
@@ -71,13 +72,13 @@ public:
         : UI(512, 256),
 #if defined(DISTRHO_OS_MAC)
           fView(nullptr),
-          fWindow(nullptr),
+          fWindow(nullptr)
 #elif defined(DISTRHO_OS_WINDOWS)
+          fWindow(nullptr)
 #else
           fDisplay(nullptr),
-          fWindow(0),
+          fWindow(0)
 #endif
-          fValue(0.0f)
     {
         const bool standalone = isStandalone();
         d_stdout("isStandalone %d", (int)standalone);
@@ -222,10 +223,17 @@ protected:
     */
     void parameterChanged(uint32_t index, float value) override
     {
-        if (index != 0)
-            return;
+        d_stdout("parameterChanged %u %f", index, value);
 
-        fValue = value;
+        switch (index)
+        {
+        case kParameterWidth:
+            setWidth(static_cast<int>(value + 0.5f));
+            break;
+        case kParameterHeight:
+            setHeight(static_cast<int>(value + 0.5f));
+            break;
+        }
     }
 
    /* --------------------------------------------------------------------------------------------------------
@@ -257,6 +265,19 @@ protected:
         return 0;
     }
 
+    void sizeChanged(uint width, uint height) override
+    {
+        d_stdout("sizeChanged %u %u", width, height);
+        UI::sizeChanged(width, height);
+
+#if defined(DISTRHO_OS_MAC)
+#elif defined(DISTRHO_OS_WINDOWS)
+#else
+        if (fWindow != 0)
+            XResizeWindow(fDisplay, fWindow, width, height);
+#endif
+    }
+
     void titleChanged(const char* const title) override
     {
         d_stdout("titleChanged %s", title);
@@ -347,7 +368,8 @@ protected:
 
         [pool release];
 #elif defined(DISTRHO_OS_WINDOWS)
-        /*MSG msg;
+        /*
+        MSG msg;
         if (! ::PeekMessage(&msg, nullptr, 0, 0, PM_NOREMOVE))
             return true;
 
@@ -358,7 +380,8 @@ protected:
 
             //TranslateMessage(&msg);
             DispatchMessage(&msg);
-        }*/
+        }
+        */
 #else
         if (fDisplay == nullptr)
             return;