Function CreatePolyPolygonRgn 

pub unsafe extern "system" fn CreatePolyPolygonRgn(
    pptl: *const POINT,
    pc: *const i32,
    cpoly: i32,
    imode: i32,
) -> *mut c_void

#225 CreatePolyPolygonRgn

allocate storage for the region structure, initialize it to make a polygon region, and return a handle to the new region