DSEnumCallback

DSEnumCallback is an application-defined callback function that enumerates the DirectSound drivers. The system calls this function in response to the application's previous call to the DirectSoundEnumerate or DirectSoundCaptureEnumerate function.

BOOL CALLBACK DSEnumCallback(
  LPGUID lpGuid,            
  LPCSTR lpcstrDescription,  
  LPCSTR lpcstrModule,       
  LPVOID lpContext          
);

Parameters

lpGuid

Address of the GUID that identifies the DirectSound driver being enumerated. This value can be passed to the DirectSoundCreate function to create a DirectSound object for that driver.

lpcstrDescription

Address of a null-terminated string that provides a textual description of the DirectSound device.

lpcstrModule

Address of a null-terminated string that specifies the module name of the DirectSound driver corresponding to this device.

lpContext

Address of application-defined data that is passed to each callback function.

Return Values

Returns TRUE to continue enumerating drivers, or FALSE to stop.

Remarks

The application can save the strings passed in the lpcstrDescription and lpcstrModule parameters by copying them to memory allocated from the heap. The memory used to pass the strings to this callback function is valid only while this callback function is running.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dsound.h.
  Import Library: User-defined.

See Also

DirectSoundEnumerate