func (u *UserInterface) isFullscreen() bool {
	if !u.isRunning() {
		panic("ui: the game must be running at isFullscreen")
	}
	return u.window.GetMonitor() != nil
}
func (u *UserInterface) isFullscreen() bool {
	if !u.isRunning() {
		panic("ui: the game must be running at isFullscreen")
	}
	return u.window.GetMonitor() != nil
}
func ( u * UserInterface ) isFullscreen ( ) bool { if ! u . isRunning ( ) { panic ( " " ) } return u . window . GetMonitor ( ) != nil }
// isFullscreen must be called from the main thread.
isFullscreen must be called from the main thread .