| Microsoft DirectX 9.0 SDK Update (October 2004) | 
The SetNumChannelGroups method changes the number of channel groups that the application needs on the port.
Syntax
HRESULT SetNumChannelGroups(
  DWORD dwChannelGroups
);
Parameters
dwChannelGroups
Number of channel groups on this port that the application wants to allocate.
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.
| Return code | 
| E_FAIL | 
| E_INVALIDARG | 
| E_NOTIMPL | 
| E_OUTOFMEMORY | 
Requirements
Header: Dmusicc.h
See Also