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mixerGetDevCaps
The mixerGetDevCaps function queries a specified mixer device to determine its capabilities.
MMRESULT mixerGetDevCaps(
UINT uMxId,
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| LPMIXERCAPS pmxcaps,
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| UINT cbmxcaps
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| );
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Parameters
uMxId
Identifier or handle of an open mixer device.
pmxcaps
Address of a MIXERCAPS structure that receives information about the capabilities of the device.
cbmxcaps
Size, in bytes, of the MIXERCAPS structure.
Return Values
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error
values include the following:
MMSYSERR_BADDEVICEID
| The specified device identifier is out of range.
| MMSYSERR_INVALHANDLE
| The mixer device handle is invalid.
| MMSYSERR_INVALPARAM
| One or more parameters are invalid.
|
Remarks
Use the mixerGetNumDevs function to determine the number of mixer devices present in the system. The
device identifier specified by uMxId varies from zero to one less than the number of mixer devices present.
Only the number of bytes (or less) of information specified in cbmxcaps is copied to the location pointed to by pmxcaps. If cbmxcaps is zero, nothing is copied, and the function returns successfully.
This function also accepts a mixer device handle returned by the mixerOpen function as the uMxId parameter. The application should cast the HMIXER handle to a UINT.
See Also
MIXERCAPS, mixerGetNumDevs, mixerOpen
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