9074     virtual HRESULT WINAPI SetAlphaBitmap(const VMRALPHABITMAP *pBmpParms) = 0;
9075     virtual HRESULT WINAPI UpdateAlphaBitmapParameters(PVMRALPHABITMAP pBmpParms) = 0;
9076     virtual HRESULT WINAPI GetAlphaBitmapParameters(PVMRALPHABITMAP pBmpParms) = 0;
9084       HRESULT (WINAPI *SetAlphaBitmap)(IVMRMixerBitmap *This,const VMRALPHABITMAP *pBmpParms);
9085 …    HRESULT (WINAPI *UpdateAlphaBitmapParameters)(IVMRMixerBitmap *This,PVMRALPHABITMAP pBmpParms);
9086       HRESULT (WINAPI *GetAlphaBitmapParameters)(IVMRMixerBitmap *This,PVMRALPHABITMAP pBmpParms);
9096 #define IVMRMixerBitmap_SetAlphaBitmap(This,pBmpParms) (This)->lpVtbl->SetAlphaBitmap(This,pBmpParm…  argument
9097 …erBitmap_UpdateAlphaBitmapParameters(This,pBmpParms) (This)->lpVtbl->UpdateAlphaBitmapParameters(T…  argument
9098 …RMixerBitmap_GetAlphaBitmapParameters(This,pBmpParms) (This)->lpVtbl->GetAlphaBitmapParameters(Thi…  argument
9101 …WINAPI IVMRMixerBitmap_SetAlphaBitmap_Proxy(IVMRMixerBitmap *This,const VMRALPHABITMAP *pBmpParms);
9103 …IVMRMixerBitmap_UpdateAlphaBitmapParameters_Proxy(IVMRMixerBitmap *This,PVMRALPHABITMAP pBmpParms);
9105 …PI IVMRMixerBitmap_GetAlphaBitmapParameters_Proxy(IVMRMixerBitmap *This,PVMRALPHABITMAP pBmpParms);