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I have a program which does some copy jobs (via File.Copy) that could last a few minutes. When the user brings another window to foreground in this time the program window gets blank since it doesn’t redraw itself.
Now I want to show a ProgressBar in an extra window in the center of the screen, but that window get’s blank too.
So I startet it in another thread which didn’t help.
I’m quite sure someone did this before but I cannot find a working example. Any Ideas?
There is nice example in the documentation on BackgroundWorker class.