I have a dialog popup for the user to select some options, if the user clicks OK, the accept signal is caught.
When the signal is caught, a new thread is created to handle some computations, the program then continuous to run through a progress bar.
The problem is that a gray area is left behind on the screen after the dialog closed (accepted).
I have attached 2 screenshots showing the problem.
screen0 – die dialog before OK is clicked
screen1 – right after OK was clicked
Can anyone help?
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