dmusic: Don't use method implementation directly. Pass through vtable with related macro instead.
diff --git a/dlls/dmusic/dmusic.c b/dlls/dmusic/dmusic.c
index 80c5d4b..a36682c 100644
--- a/dlls/dmusic/dmusic.c
+++ b/dlls/dmusic/dmusic.c
@@ -193,7 +193,7 @@
 	
 	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;
diff --git a/dlls/dmusic/dmusic_private.h b/dlls/dmusic/dmusic_private.h
index 1aa0536..c05adf0 100644
--- a/dlls/dmusic/dmusic_private.h
+++ b/dlls/dmusic/dmusic_private.h
@@ -151,8 +151,6 @@
   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;
 
diff --git a/dlls/dmusic/port.c b/dlls/dmusic/port.c
index 6cb5634..d0bbd9a 100644
--- a/dlls/dmusic/port.c
+++ b/dlls/dmusic/port.c
@@ -157,7 +157,8 @@
 	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;