Method tcl_obj_to_bool

crates/stdlib/src/tkinter.rs:180–191

(&self, obj: *mut tk_sys::Tcl_Obj)

    #[pyclass(with(Constructor))]
    impl TkApp {
        fn tcl_obj_to_bool(&self, obj: *mut tk_sys::Tcl_Obj) -> bool {
            let mut res = -1;
            unsafe {
                if tk_sys::Tcl_GetBooleanFromObj(self.interpreter, obj, &mut res)
                    != tk_sys::TCL_OK as i32
                {
                    panic!("Tcl_GetBooleanFromObj failed");
                }
            }
            assert!(res == 0 || res == 1);
            res != 0
        }

        fn tcl_obj_to_pyobject(
            &self,