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waveOutGetVolume.md

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Function name : waveOutGetVolume

Group: Windows Multimedia - Library: winmm

The waveOutGetVolume function retrieves the current volume level of the specified waveform-audio output device.

Code examples:

WAV file player

Declaration:

MMRESULT waveOutGetVolume(
  HWAVEOUT hwo,
  LPDWORD pdwVolume
);

FoxPro declaration:

DECLARE INTEGER waveOutGetVolume IN winmm;
	INTEGER   hwo,;
	INTEGER @ pdwVolume

Parameters:

hwo Handle to an open waveform-audio output device. This parameter can also be a device identifier.

pdwVolume Pointer to a variable to be filled with the current volume setting.

Return value:

Returns MMSYSERR_NOERROR (0) if successful or an error otherwise.

Comments:

The low-order word of pdwVolume contains the left-channel volume setting, and the high-order word contains the right-channel setting. A value of 0xFFFF represents full volume, and a value of 0x0000 is silence.