gtk/window.go
func (v *Window) SetTitle(title string) {
	cstr := C.CString(title)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_window_set_title(v.native(), (*C.gchar)(cstr))
}
func (v *Window) SetTitle(title string) {
	cstr := C.CString(title)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_window_set_title(v.native(), (*C.gchar)(cstr))
}
// SetTitle is a wrapper around gtk_window_set_title().