Function GetUpdateRgn
pub unsafe extern "system" fn GetUpdateRgn(
hwnd: HWND,
hrgn: HRGN,
berase: BOOL,
) -> GDI_REGION_TYPE
pub unsafe extern "system" fn GetUpdateRgn(
hwnd: HWND,
hrgn: HRGN,
berase: BOOL,
) -> GDI_REGION_TYPE