In my application, I show a Jframe at the corner of screen for notification. And I want to show only Jframe and do not display a title bar at task bar.
How can I do that?
A:
Try adding a call to setUndecorated(true);. It tells the window manager to not add the title bar and window buttons.
Note: this must be called while the frame is not displayed.
Devon_C_Miller
2010-01-29 23:17:56
Unfortunately, undecorated `JFrame` windows still appear in the taskbar, at least on the system that I'm testing on right now (Windows 7).
Joe Carnahan
2010-02-28 15:07:23
Ah, missed that on the first read. Then you want to look at using a non-modal `JDialog`. It will behave the same, but will not have the minimize/maximize buttons on the titlebar as minimize without a taskbar presence makes no sense. Now, if you're trying to do a notification popup where it has no titlebar, no border, and no taskbar presence, you may want to look at JWindow.
Devon_C_Miller
2010-03-01 15:56:03
+3
A:
If you want the window to just appear and have neither a title bar nor appear in the taskbar, use a JWindow.
If you want the window to appear and have a title bar but to not appear in the taskbar, use a JDialog.
Joe Carnahan
2010-02-28 15:04:45
This is correct. JFrame is meant to be the primary application window (ie, a framed window). JWindow is any popup window. JDialog is framed, but its a secondary window, so it doesn't show up in the taskbar.
Milan Ramaiya
2010-02-28 15:09:25