waveOutClose function (mmeapi.h)

Article
02/22/2024

The waveOutClose function closes the given waveform-audio output device.

Syntax

MMRESULT waveOutClose(
  HWAVEOUT hwo
);

Parameters

hwo

Handle to the waveform-audio output device. If the function succeeds, the handle is no longer valid after this call.

Return value

Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following.

Return code	Description
MMSYSERR_INVALHANDLE	Specified device handle is invalid.
MMSYSERR_NODRIVER	No device driver is present.
MMSYSERR_NOMEM	Unable to allocate or lock memory.
WAVERR_STILLPLAYING	There are still buffers in the queue.

Remarks

The close operation fails if the device is still playing a waveform-audio buffer that was previously sent by calling waveOutWrite. Before calling waveOutClose, the application must wait for all buffers to finish playing or call the waveOutReset function to terminate playback.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	mmeapi.h (include Windows.h)
Library	Winmm.lib
DLL	Winmm.dll