Type Alias GtkDrawingAreaDrawFunc 

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)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut GtkDrawingArea, *mut cairo_t, i32, i32, *mut c_void))

Some value of type T.