Added a method VSTPluginFormat::dispatcher() to allow raw access to a VST's dispatcher function.

modules/juce_audio_processors/format_types/juce_VSTPluginFormat.cpp

@@ -2863,4 +2863,12 @@ void VSTPluginFormat::setExtraFunctions (AudioPluginInstance* plugin, ExtraFunct
         vst->extraFunctions = f;
 }
 
+VstIntPtr JUCE_CALLTYPE dispatcher (AudioPluginInstance* plugin, int32 opcode, int32 index, VstIntPtr value, void* ptr, float opt)
+{
+    if (VSTPluginInstance* vst = dynamic_cast <VSTPluginInstance*> (plugin))
+        return vst->dispatch (opcode, index, value, ptr, opt);
+
+    return 0;
+}
+
 #endif

modules/juce_audio_processors/format_types/juce_VSTPluginFormat.h

@@ -79,6 +79,16 @@ public:
     */
     static void setExtraFunctions (AudioPluginInstance* plugin, ExtraFunctions* functions);
 
+    //==============================================================================
+   #if JUCE_64BIT
+    typedef int64 VstIntPtr;
+   #else
+    typedef int32 VstIntPtr;
+   #endif
+
+    /** This simply calls directly to the VST's AEffect::dispatcher() function. */
+    static VstIntPtr JUCE_CALLTYPE dispatcher (AudioPluginInstance*, int32, int32, VstIntPtr, void*, float);
+
     //==============================================================================
     String getName() const override                { return "VST"; }
     void findAllTypesForFile (OwnedArray <PluginDescription>&, const String& fileOrIdentifier) override;