func (form *Form) Sub() *Window { return (*Window)(C.form_sub((*C.FORM)(form))) }
func (form *Form) Sub() *Window { return (*Window)(unsafe.Pointer((C.form_sub((*C.FORM)(form))))) }
// Sub returns the subwindow assocaiated with the form func (f *Form) Sub() Window { return Window{C.form_sub(f.form)} }