Minimize to tray on close button click.

[rahul S Sharma]

Hi all,

I have made a jframe in which i am using setDefaultCloseOperation(HIDE_ON_CLOSE) operation. By this when i click on close button of window, frame simply hide and my tray icon doesn't disappear but when i click on Jbutton named as CLOSE, tray icon disappear because i have written System.exit(0) in button action performed method. Now I want that when i click on CLOSE Jbutton, tray icon should not disappear from its position.

regards....

[Maneesh Godbole]

Instead of System.exit(0); use setVisible(false);

[Campbell Ritchie]

Or find the method which minimises the GUI. It may be called setIconified, or similar.

[Rob Spoor]

It's setExtendedState, with the state set to x | Frame.ICONIFIED where x is the current extended state. To restore, you then call setExtendendState with the state set to x & ~Frame.ICONIFIED with x again being the current extended state. By using this approach, the frame will go back to the previous state - maximized or not.

However, this will still show the application in the task bar. You will need to call setVisible(false) as well. The best way to handle this:
- minimize by clicking the icon in the frame's title bar: use a WindowListener that calls setVisible(false) in the windowIconified method.
- minimize from code: first use setExtendedState as I described above, then call setVisible(false).
- restoring from code: first call setVisible(true), then use setExtendedState as I described above.

[Darryl Burke]

Rob Spoor wrote:
- minimize by clicking the icon in the frame's title bar: use a WindowListener that calls setVisible(false) in the windowIconified method.
- minimize from code: first use setExtendedState as I described above, then call setVisible(false).

Haven't tested, but the WindowListener's windowIconified(...) should be called regardless of whether the window was iconified/minimized by user action or code execution. So the bolded part shouldn't be needed.

[Rob Spoor]

You're completely right. I missed that.