◄Contents► ◄Index► ◄Back► ──────────────────────────────────────────────────────────────────────────── mciGetDriverData DWORD WINAPI mciGetDriverData(uDeviceID) Returns a pointer to the instance data associated with an MCI device. Parameters UINT uDeviceID Specifies the MCI device ID. Return value Returns the driver instance data. On error, returns zero. Since the driver data might be zero, the caller cannot verify an error unless the instance data is known to be non-zero (for example, a pointer). -♦-