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