mciSetDriverData

BOOL WINAPI mciSetDriverData(UINT uDeviceID, DWORD dwData)
 

This function sets the instance data associated with an MCI device.

• Returns zero if the device ID is not known or there is insufficient memory to load the device description.

uDeviceID

Specifies the MCI device ID.

dwData

Specifies the driver data to set.

Typically device drivers set the data when it is opened. The device driver will then retrieve the data with mciGetDriverData in response to subsequent messages.