a nonresponsive program, doesn't end gracefully when asked to terminate, for testing

I want to write a simple program that does nothing but does not easily terminate when asked to. I want to see the Windows dialog box which says, "this program is not responsive, do you want to wait to let it finish what it's doing, or terminate it now?". After the user chooses "terminate it now", it should, of course, exit.

The reason I want this is for a testing environment. I want to test a scenario in which the user is trying to log out, but the system doesn't log them out right away, because of an unresponsive program.

I tried responding to WM_DESTROY by calling Sleep(), but that doesn't seem to do it. The program still terminates immediately when killed from the Task Manager. Again, I'm not trying to write somethi开发者_如何学Cng truly "unkillable", just a simple program which makes that dialog box come up asking if the user wants to wait for the program to finish.

Thanks very much for any help.

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You can try modifying your main-message loop . Use PeekMessage(...) with NO_REMOVE and ignore WM_QUIT messages

EDIT: Remove every message (except WM_QUIT) before processing it (GetMessage( &msg ,msg.hWnd ,msg.message ,msg.message ))