Microsoft Speech Platform
ISpMMSysAudio::GetMMHandle
ISpMMSysAudio::GetMMHandle passes back a multimedia audio device stream handle.
HRESULT GetMMHandle(
void **pHandle
);
Parameters
- pHandle
- The wave in or wave out device handle.
Return values
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| E_POINTER | pHandle is invalid. |
| SPERR_UNINITIALIZED | Audio object is in the SPAS_CLOSED state. |
Remarks
The audio object must not be in the SPAS_CLOSED state or this call will fail because the multimedia device will not have been opened yet. The caller must not close the passed back handle. The caller must not use the handle either after changing the state of the audio object to SPAS_CLOSED or after releasing the object.