mixerGetDevCaps
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4/8/2010
This function queries a specified mixer device to determine its capabilities.
Syntax
MMRESULT mixerGetDevCaps(
UINT uMxId,
LPMIXERCAPS pmxcaps,
UINT cbmxcaps
);
Parameters
- uMxId
Identifier or handle of an open mixer device.
- pmxcaps
Pointer to a MIXERCAPS structure that receives information about the capabilities of the device.
- cbmxcaps
Size, in bytes, of the MIXERCAPS structure.
Return Value
Returns MMSYSERR_NOERROR if successful or an error otherwise.
The following table shows the possible error values.
| Value | Description |
|---|---|
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.
Requirements
| Header | mmsystem.h |
| Library | coredll.lib |
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
| Note | Version 2.12 requires DXPAK 1.0 or later |