Function HitTestThemeBackground
pub unsafe fn HitTestThemeBackground(
htheme: HTHEME,
hdc: Option<HDC>,
ipartid: i32,
istateid: i32,
dwoptions: HIT_TEST_BACKGROUND_OPTIONS,
prect: *const RECT,
hrgn: Option<HRGN>,
pttest: POINT,
) -> Result<u16>