The before after...

I once had a program that disabled a button when a frame/dialog was visible, and then enabled the button when the frame/dialog was not visible... problem is, I can't remember how to do something like that! if you could guide me i'd appreciate it, thanks.
(the reason it enabled and disabled was cause the button would initiate the frame/dialog, but to keep more than one instance from a frame/dialog opening i want to have the button disabled while the frame/dialog is visible, button opens the frame/dialog)
Rain or shine, swing or awt, it's okay for me.
-Josh

Yea, I could, but the way I had it on one program was nice, once you pressed the button for the frame/dialog to show it would not be enabled again until the frame/dialog was not shown. I just want the button to disable while the frame/dialog is shown and enable when it is not shown. I mean, using remove actionListener would be okay, but I just don't wanna do that.

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