Function OffsetWindowOrgEx 

pub unsafe extern "system" fn OffsetWindowOrgEx(
    hdc: *mut c_void,
    x: i32,
    y: i32,
    lppt: *mut POINT,
) -> i32

#215 OffsetWindowOrgEx

modify the window origin for the device-context hdc, using horizontal offset nXOffset and vertical offset nYOffset