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Article #4959

Re: stop undocked controls from closing

#4959
From: Remy Lebeau (TeamB)
Date: Fri, 14 Oct 2005 20:44
18 lines
1787 bytes
"Stefano Bonifazi" <stefboombastic@libero.it> wrote in message
news:434ffd95$1@newsgroups.borland.com...

>  Is there a way to prevent a floating undocked control from being
> closed by pushing the "x" on its windows's upper right corner?

If you are using a TForm, then set the CanClose parameter to False in the
OnCloseQuery event, or the Action parameter to caNone in the OnClose event.

If you are creating your own HWND via CreateWindow/Ex(), then your window
procedure will have to intercept the WM_SYSCOMMAND message.  The message's
wParam value will contain the SC_CLOSE flag when the window is being closed.
Discard the message without passing it to DefWindowProc() to prevent the
closure.


Gambit
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Subject: Re: stop undocked controls from closing
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