pub type GdkFilterFunc = Option<unsafe extern "C" fn(*mut GdkXEvent, *mut GdkEvent, gpointer) -> GdkFilterReturn>;
Aliased Type§
enum GdkFilterFunc {
None,
Some(unsafe extern "C" fn(_: *mut c_void, _: *mut GdkEvent, _: *mut c_void) -> i32),
}