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Resetting a control's focus upon windows regaining focus

Posted on 2005-03-31
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Last Modified: 2010-04-16
Hi,

I just got a function which allows me to return the focus to a particular window, when I want to.  But the new problem is how do I record the control field which last had focus, so that I can return the focus to it?

I could come up with a hokey method where I retain an enumerated value, and each enumerated value relates to a particular control field.  But I'd like to see if there's a more elegant way, before I write it.

Does anybody have any idea about how to do this?

Thanks in advance.

Bob
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Question by:ba272
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AaronReams earned 2000 total points
ID: 13678292
Hi Bob,

This should all be handled for you automatically by windows.  This works for either inter-process or intra-process communication.  

You can test this by creating a simple form project and then creating two other forms.  Add a couple text boxes to each of the other forms and launch them modelessly (Show()).  You'll see as you switch back and forth (programatically by calling Form.Focus() or clicking with mouse) that the caret is in the textbox in each modeless form where you left it.

Something has probably gone awry in your app if focus is not maintained by the last control when you activate a form or process.  Are you perhaps forcing focus to another child control?

Hope this helps.

-Aaron
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Author Comment

by:ba272
ID: 13678328
Thanks Aaron,

Actually, I was expecting it to be a problem and was circumventing the problem beforehand.  But come to think of it you're right.  Windows does that kind of work for me.
Problem solved.

That's a good thing to learn just before bed.

Good night.

Bob
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