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Thread: Event Handling

  1. #1
    zzpprk is offline Member
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    Default Event Handling


    Hope you can help because I am at a loss on thios one.

    As part of the actionPerformed(ActionEvent) method on a window (call it A), I open-up a second window B.

    The problem is that window B is only partially displayed and window A goes blank whenever I move window B around using the mouse.

    All is fine if I open window B outside the event handler as a test so the problem is not with window B.

    Seems to be that this weird display behaviour might be caused by the system being blocked because it is processing an event on window A. How can I tell the system that I have finished handling the event before I open window B?

    Any ideas is much appreciated.



  2. #2
    Fubarable's Avatar
    Fubarable is offline Moderator
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    You've likely got a bug in your code. Where, I've no idea. Is your Swing code calling a time-consuming process but not calling this in a background thread? Again, there's no way for us to know what's going on given the information as presented by you. We'll need more information and code.

    Much luck.

  3. #3
    zweibieren is offline Senior Member
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    How can I tell the system that I have finished handling the event before I open window B?
    To schedule an action to follow completion of the current event:
    Java Code:
    java.awt.EventQueue.invokeLater(new Runnable() {
    public void run() {
            // here code to create the other window

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