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9.2

Wait for JFrame to create

Asked by GMSDev in Java 2 Micro-Edition (J2ME), NetBeans IDE, Java AWT & Swing

Tags: Java

I have an application where I need to create a JFrame and then wait for it to fully create so I can access the Graphics element. When I call the setVisible function, the frame does create right away but the getGraphics function returns null until I exit the calling function. Is there a way to wait while I am in the calling function for the frame to complete? Here is a sample of what I am describing.

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             public class Main {
 
    public static void main(String[] args) {
        Graphics g;
 
        TestWindow win = new TestWindow();
        win.setSize(400, 600);
        win.setVisible(true);
 
        while (win.getGraphics() != null) {
 
        }
 
        //We won't get here
        win.setTitle("Test Window");
        g = win.getGraphics();
    }
 
}
 
public class TestWindow extends JFrame {
 
    public TestWindow() {
 
    }
}

           
         

20091111-EE-VQP-92 - Hierarchy / EE_QW_3_20080625

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Wait for JFrame to create

Asked by GMSDev in Java 2 Micro-Edition (J2ME), NetBeans IDE, Java AWT & Swing

Tags: Java

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