How to pop up a dialog window?

[FCG HU Z. <Zhe...@al...>]

hi,
=20
I am writing my own main window, that is, I used mainFrame =3D new
JFrame(...) to create my own main window, and used
mainFrame.getContentPane().add(...) to add my own Panel (subclass of the
class generated by UIC, which is a subclass of JPanel) to the main
window.

I have a button on the main window, and I would like to pop up a modal
dialog window whenever the button is pressed.

Should I create the dialog window in QtDesigner as a Widget or Dialog?
And how could I let the dialog pop up?

If I create the dialog window as a Dialog, the generated class is a
subclass of JDialog, but I can not find a way to set its parent. The
constructor JDialog(Frame parent, String title, boolean modal) is not
visible to my code. Maybe I need to make it a Widget, and then add it to
the ContentPane of a new JDialog(parent, title, true)?



- James