Function xcb::ffi::xfixes::xcb_xfixes_region_extents_checked

pub unsafe extern "C" fn xcb_xfixes_region_extents_checked(
    c: *mut xcb_connection_t, 
    source: xcb_xfixes_region_t, 
    destination: xcb_xfixes_region_t
) -> xcb_void_cookie_t