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waveInGetDevCaps
The waveInGetDevCaps function retrieves the capabilities of a given waveform-audio input device.
MMRESULT waveInGetDevCaps(
UINT uDeviceID,
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| LPWAVEINCAPS pwic,
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| UINT cbwic
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| );
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Parameters
uDeviceID
Identifier of the waveform-audio output device. It can be either a device
identifier or a handle of an open waveform-audio input device.
pwic
Address of a WAVEINCAPS structure to be filled with information about the capabilities of the device.
cbwic
Size, in bytes, of the WAVEINCAPS 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.
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Remarks
Use this function to determine the number of waveform-audio input devices
present in the system. If the value specified by the uDeviceID parameter is a device identifier, it can vary from zero to one less than the
number of devices present. The WAVE_MAPPER constant can also be used as a
device identifier. Only cbwic bytes (or less) of information is copied to the location pointed to by pwic. If cbwic is zero, nothing is copied and the function returns zero.
See Also
WAVEINCAPS
Related Links
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Win32 Programmer's Reference (win32.hlp)
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Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
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