pub unsafe extern "C" fn gdk_x11_surface_lookup_for_display(
display: *mut GdkX11Display,
window: c_ulong,
) -> *mut GdkX11Surface
pub unsafe extern "C" fn gdk_x11_surface_lookup_for_display(
display: *mut GdkX11Display,
window: c_ulong,
) -> *mut GdkX11Surface