pub fn is_null(&self) -> bool {
        let (obj_data, funcs) = self.get_rect_f_obj_funcs();
        unsafe {
            let ret_val = ((*funcs).is_null)(obj_data);
            ret_val
        }
    }
///
/// Returns `true` if the rectangle is a null rectangle, otherwise returns `false.`
///
/// A null rectangle has both the width and the height set to 0. A
/// null rectangle is also empty, and hence not valid.
///
/// **See also:** [`is_empty()`]
/// [`is_valid()`]
Returns `true` if the rectangle is a null rectangle, otherwise returns `false.`
A null rectangle has both the width and the height set to 0. A
null rectangle is also empty, and hence not valid.


Returns ` true ` if the rectangle is a null rectangle otherwise returns ` false . ` A null rectangle has both the width and the height set to 0 . A null rectangle is also empty and hence not valid .
pub fn is_null(&self) -> bool {
        let (obj_data, funcs) = self.get_rect_f_obj_funcs();
        unsafe {
            let ret_val = ((*funcs).is_null)(obj_data);
            ret_val
        }
    }
pub fn is_null ( & self ) -> bool { let ( obj_data , funcs ) = self . get_rect_f_obj_funcs ( ) ; unsafe { let ret_val = ( ( * funcs ) . is_null ) ( obj_data ) ; ret_val } }
Returns `true` if the rectangle is a null rectangle, otherwise returns `false.`
A null rectangle has both the width and the height set to 0.
Returns ` true ` if the rectangle is a null rectangle otherwise returns ` false . ` A null rectangle has both the width and the height set to 0 .
&self
&self