pub type GtkDrawingAreaDrawFunc = Option<unsafe extern "C" fn(*mut GtkDrawingArea, *mut cairo_t, c_int, c_int, gpointer)>;
Aliased Type§
pub enum GtkDrawingAreaDrawFunc {
None,
Some(unsafe extern "C" fn(*mut GtkDrawingArea, *mut cairo_t, i32, i32, *mut c_void)),
}