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Editorial Team
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Asked: 2026-05-11T20:00:08+00:00

There are a few options here, probably, but what would you suggest to be

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There are a few options here, probably, but what would you suggest to be the safest way to accomplish the following:

I’ve got a child CFrameWnd with a parent = NULL (so that it can live a separate life from the main application, while the app is running, at least). I’ve got all those windows stored in a list. When the main app is closing (MainFrame getting an OnClose), I go through the array and issue a PostMessage(WM_CLOSE) to all. However, the problem is that each of them has to do stuff before closing down. So, I need to wait for them. But we’re all on the same thread… So, how can I wait for the children to close, without blocking their own processing in a single-threaded application?

Or should I launch a worker thread to take care of that? Would it be easier?

Thanks in advance!

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1 Answer

  1. Editorial Team

    Use SendMessage() instead of PostMessage().

    Edit: Another option might be to simply handle WM_DESTROY in your child windows (depending on your code of course).

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