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Asked: 2026-05-10T20:50:36+00:00

How do I get the KeyDown event to work in a Delphi (2007) MDI

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How do I get the KeyDown event to work in a Delphi (2007) MDI Applications Parent window, even if a Child window has focus?

I would like to implement a shortcut key (F1) that brings up a help screen in a MDI application, I have added the KeyDown procedure to the MDI Parent window and enabled KeyPreview in both the Parent and Child windows, but it does not work as expected.

If I put a break point in the Parents KeyDown code I can see it never executes, even it there are no child windows open. But if I add the same code to the child window it works fine.

Is there a way to get the parent window to receive the key presses, even if the child window has focus, as adding the code to 25+ forms seams a little wasteful?

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  1. I had the exact same problem this week! I fixed it by creating an action in the ActionManager on the mainform. This action opens the help file and has the F1-key set as shortcut. It also works for all MDI child screens.

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