JavaFX: can you create a stage that doesn't show on the task bar and is undecorated?

javafx-8
dejuknow picture dejuknow · Jul 4, 2014 · Viewed 12.7k times · Source

I'm trying to create a stage that doesn't appear on the Windows task bar and is undecorated (no borders and no close/minimize/maximize buttons). My end goal is to create a tray icon application that will pop up notification windows.

It's similar to this question where I want the behavior of both StageStyle.UTILITY (which prevents the stage from showing on the task bar) and StageStyle.TRANSPARENT (which is a completely undecorated window).

The referenced question doesn't work for me because I don't have a parent stage from which to make a modal window. Any ideas on how to get this to work? Thanks

Answer

dejuknow picture dejuknow · Aug 29, 2014

I was able to workaround this issue with the following code:

    Stage stage = new Stage();

    stage.initStyle(StageStyle.UTILITY);
    stage.setMaxHeight(0);
    stage.setMaxWidth(0);
    stage.setX(Double.MAX_VALUE);

StageStyle.UTILITY will avoid creating a taskbar icon. I set the width and height to 0 make the window small and then use stage.setX(Double.MAX_VALUE) to place it far off screen so it doesn't show up. It's a bit hokey, but it seems to work fine.

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