public void setFullScreen( DisplayMode dm ){
        this.setUndecorated(true);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.pack();
        this.setSize(1920, 1080);
        this.setResizable(false);
        this.setVisible(true);
        vc.setFullScreenWindow(this);

        if( dm != null && vc.isFullScreenSupported() ){
            try{
                vc.setDisplayMode(dm);
            }catch(Exception ex){ex.printStackTrace();}
        }
    }