MCIWNDM_GETDEVICEID  31K92H 

The MCIWNDM_GETDEVICEID message retrieves the identifier of the currently open MCI device to use with the mciSendCommand_H60X4 function. You can send this message explicitly or by using the MCIWndGetDeviceID8U6J0S macro.

MCIWNDM_GETDEVICEID

wParam = 0;

lParam = 0;

Return Values

Returns the device identifier.

See Also