IDirectMusic8::CreateMusicBuffer

The CreateMusicBuffer method creates a DirectMusicBuffer object to hold music messages being sequenced to the port. Most applications do not need to call this method directly because buffer management is handled by the performance when a port is added.

Syntax

HRESULT CreateMusicBuffer(
  LPDMUS_BUFFERDESC pBufferDesc, 
  LPDIRECTMUSICBUFFER*..ppBuffer, 
  LPUNKNOWN pUnkOuter 
);

Parameters

pBufferDesc

Address of the DMUS_BUFFERDESC structure that contains the description of the music buffer to be created. The application must initialize the dwSize member of this structure before passing the pointer.

ppBuffer

Address of a variable that receives an IDirectMusicBuffer8 interface pointer.

pUnkOuter

Address of the controlling object's IUnknown interface for COM aggregation. Because aggregation is not currently supported, this value must be set to NULL.

Return Values

If the method succeeds, the return value is S_OK.

If it fails, the method can return one of the error values shown in the following table.

Requirements

  Header: Declared in dmusicc.h.

See Also

• IDirectMusic8