pub unsafe extern "system" fn GdipEnumerateMetafileSrcRectDestPointsI(
    graphics: *mut GpGraphics,
    metafile: *const GpMetafile,
    destpoints: *const Point,
    count: i32,
    srcrect: *const Rect,
    srcunit: Unit,
    callback: isize,
    callbackdata: *mut c_void,
    imageattributes: *const GpImageAttributes,
) -> Status