Change Windowed/Fullscreen Mode Dynamically

[witman]

Depending on your application, something like this may do what you're looking for. It removes/adds the window frame and title bar at runtime, giving you the effect of fullscreen and windowed modes.

Max Window size in different monitors

Do you mean full screen mode where the window fills the whole screen with no title bar? If so, the code below on a button will swap the desktop the button is contained in between full screen and windowed modes. from javax.swing import JFrame window = system.gui.getParentWindow(event) while not isinstance(window, JFrame): window = window.getParent() if window.isUndecorated(): # Switch to windowed mode. window.dispose() window.setUndecorated(False) window.setExtendedState(JFrame.NORMAL) #…