dmusic: Don't use method implementation directly. Pass through vtable with related macro instead.

dlls/dmusic/dmusic.c

@@ -193,7 +193,7 @@ static HRESULT WINAPI IDirectMusic8Impl_Activate (LPDIRECTMUSIC8 iface, BOOL fEn
 	
 	FIXME("(%p, %d): stub\n", This, fEnable);
 	for (i = 0; i < This->nrofports; i++) {
-            IDirectMusicPortImpl_Activate(This->ppPorts[i], fEnable);
+            IDirectMusicPort_Activate(This->ppPorts[i], fEnable);
 	}
 	
 	return S_OK;

dlls/dmusic/dmusic_private.h

@@ -151,8 +151,6 @@ struct IDirectMusicPortImpl {
   DMUSIC_PRIVATE_CHANNEL_GROUP group[1];
 };
 
-extern HRESULT WINAPI IDirectMusicPortImpl_Activate (LPDIRECTMUSICPORT iface, BOOL fActive) DECLSPEC_HIDDEN;
-
 /** Internal factory */
 extern HRESULT WINAPI DMUSIC_CreateDirectMusicPortImpl (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter, LPDMUS_PORTPARAMS pPortParams, LPDMUS_PORTCAPS pPortCaps) DECLSPEC_HIDDEN;
 

dlls/dmusic/port.c

@@ -157,7 +157,8 @@ static HRESULT WINAPI IDirectMusicPortImpl_GetNumChannelGroups (LPDIRECTMUSICPOR
 	return S_OK;
 }
 
-HRESULT WINAPI IDirectMusicPortImpl_Activate (LPDIRECTMUSICPORT iface, BOOL fActive) {
+static HRESULT WINAPI IDirectMusicPortImpl_Activate (LPDIRECTMUSICPORT iface, BOOL fActive)
+{
 	IDirectMusicPortImpl *This = (IDirectMusicPortImpl *)iface;
 	TRACE("(%p, %d)\n", This, fActive);
 	This->fActive = fActive;