Send WM_PAINT to another application

[a_fischetti]

Can my program send a message to another program?

Thanks in advance.

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[Marqy]

Here's a gross solution!! If you know the title bar text of the target window, call FindWindow() to get it's hWnd, you can then call PostMessage (or create a CWnd * then call class members like Invalidate(), which posts the message for you). Note this isn't very good code though - if the caption of the window changes your code will break...

A better solution is to have your applications expose interfaces which you can use to post notification on.

MJA