Working with edit controls

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I know how to set the focus to an edit control, but is there a way to check if an edit control has focus?

Posted 1-Apr-12 5:38am

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André Kraak · Accepted Answer · 2012-04-01T05:47:00

Use the Getfocus[^] function to get the windows that currently has the input focus and compare the result with the edit control your using.

Posted 1-Apr-12 5:47am

Comments

Sergey Alexandrovich Kryukov 1-Apr-12 12:30pm

We completed out posts almost at the same time; I advised the same thing.
My 5.
--SA

DrBones69 1-Apr-12 13:36pm

Thanks, it appears that I hadn't had my coffee yet. ;)

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-04-01T05:50:00

I guess you found out the function SetFocus:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646312%28v=vs.85%29.aspx[^].

If you did, I don't know how could you miss GetFocus referenced from that page:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646294%28v=vs.85%29.aspx[^].

The focus means keyboard focus; and only one control at a time in the whole system can have the focus. So, you find out HWND of the window which currently has focus and compare with HWND of the control you are interested in. If they are the same, your control is currently focused.

[EDIT]

DrBones69 asked:
I know how to set the focus to an edit control, but is there a way to check if an edit control has focus?

This would be another way. One can get CWnd::GetFocus, but still compare HWND of the result with HWND of the control in question. Please see:
http://msdn.microsoft.com/en-US/library/f9fd0z3x%28v=vs.100%29.aspx[^],
http://msdn.microsoft.com/en-us/library/bcs64shx.aspx[^].

In more general case, it's good to use CWnd::GetSafeHwnd, but the result CWnd::GetFocus will already return NULL in case of none is focused, and this result should be tested for NULL. Anyway, see also:
http://msdn.microsoft.com/en-us/library/d64ehwhz.aspx[^].

—SA