Java method works on windows but not Macintosh?

Question

I had a real weird method which is used to hide JInternalFrame\'s title bar. Now the dilemma is below method works on windows platform,

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Answer 1

This may be a hairy corner of Swing. This functionality wasn't added to swing until java 1.5 as far as i recall.

have you tried the Frame.setUndecorated method?

http://download.oracle.com/javase/1.5.0/docs/api/java/awt/Frame.html#setUndecorated%28boolean%29

If that doesn't work you may need to drop down and do some JNI on the underlying native window object. I had to do this for similar functionality on windows with the 1.4 jvm.