waveInGetDevCaps
The waveInGetDevCaps
function retrieves the capabilities of a given waveform-audio input device.
MMRESULT waveInGetDevCaps(
|
UINT uDeviceID, |
|
|
LPWAVEINCAPS pwic, |
|
|
UINT cbwic |
|
|
); |
|
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. |
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