Show dialog in screen center

[mourad]

Hello everybody, in my Qt 4.3 application developped on Windows, I've a function that call a process and a tryicon is added in Windows StatusBar. When I click the the notification I call the show() method which show a dialog. The problem that the dialog is showen in the top right of the screen (its default position) and I want to show in the center screen. Can anyone tell me how to do and what I must to add to do this.
Many thanks and best regards.

[jpn]

Please search the forums before starting new threads.