How do I resize frame size after closing on screen keyboard?

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Java

Hi everyone, for a project I'm using TabTip.exe virtual keyboard in Swing. And I open Tabtip with a button.
When TabTip is opened, my frame is set on top. Because I want to see the whole project's screen when it opened. But after closing TabTip, the application doesn't resize itself. How can I control if TabTip is on or off? Or are there any better ways to resize the screen if TabTip is closed?

I tried to use ComponentListener for it but doesn't work for me.

What I have tried:

frame.addComponentListener(new ComponentListener() {
@Override
public void componentResized(ComponentEvent e) {
/////////////
}
}