The mciGetDeviceID function retrieves the device identifier corresponding to the name of an open device.
MCIDEVICEID mciGetDeviceID(
LPCTSTR lpszDevice
);
Returns the device identifier assigned to the device when it was opened if successful. The identifier is used in the mciSendCommand function. If the device name is not known, if the device is not open, or if there was not enough memory to complete the operation, the return value is zero.
Each file for a compound device has a unique device identifier. The identifier of the "all" device is MCI_ALL_DEVICE_ID.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in mmsystem.h.
Import Library: Use winmm.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT.
MCI Overview, MCI Functions, mciSendCommand