pub type Tk_ItemAreaProc = Option<unsafe extern "C" fn(canvas: Tk_Canvas, itemPtr: *mut Tk_Item, rectPtr: *mut f64) -> c_int>;Aliased Type§
pub enum Tk_ItemAreaProc {
None,
Some(unsafe extern "C" fn(*mut Tk_Canvas_, *mut Tk_Item, *mut f64) -> i32),
}