Function copy_rectangle

pub unsafe extern "C" fn copy_rectangle(
    WindowHandleSource: Hlong,
    WindowHandleDestination: Hlong,
    Row1: Hlong,
    Column1: Hlong,
    Row2: Hlong,
    Column2: Hlong,
    DestRow: Hlong,
    DestColumn: Hlong,
) -> Herror