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The waveOutGetDevCaps function retrieves the capabilities of a given waveform-audio output device.

Declare Function waveOutGetDevCaps Lib "winmm.dll" Alias "waveOutGetDevCapsA" (ByVal uDeviceID As Long, lpCaps As WAVEOUTCAPS, ByVal uSize As Long) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later


Parameter Information
- uDeviceID
Identifier of the waveform-audio output device. It can be either a device identifier or a handle of an open waveform-audio output device.

- pwoc
Address of a WAVEOUTCAPS structure to be filled with information about the capabilities of the device.

- cbwoc
Size, in bytes, of the WAVEOUTCAPS structure.

Return Values
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following.
MMSYSERR_BADDEVICEID Specified device identifier is out of range.
MMSYSERR_NODRIVER No device driver is present.
MMSYSERR_NOMEM Unable to allocate or lock memory.

Last update: 07 April 2006