BOOLEAN GetDeviceValues( IN PDEVICE_OBJECT DeviceObject, OUT PULONG BytesPerSector, OUT PLARGE_INTEGER NumberOfSectors ); Routine Description: This routine returns information about the partition represented by the device object. Arguments: DeviceObject - Pointer to the device object from which to read. BytesPerSector - Variable to receive the number of bytes per sector for the device being read. NumberOfSectors - Variable to receive the number of sectors for this partition. Return Value: The function value is TRUE if the information was found, otherwise FALSE.