WORD auxGetDevCaps(wDeviceID, lpCaps, wSize)
This function queries a specified auxiliary output device to determine its capabilities.
WORD wDeviceID
Identifies the auxiliary output device to be queried.
LPAUXCAPS lpCaps
Specifies a far pointer to an AUXCAPS structure. This structure is filled with information about the capabilities of the device.
WORD wSize
Specifies the size of the AUXCAPS structure.
Returns zero if the function was successful. Otherwise, it returns an error number. Possible error returns are:
MMSYSERR_BADDEVICEID
Specified device ID is out of range.
MMSYSERR_NODRIVER
The driver failed to install.
Use auxGetNumDevs to determine the number of auxiliary output devices present in the system. The device ID specified by wDeviceID varies from zero to one less than the number of devices present.
auxGetNumDevs