Re: Multi-thread UI program cause modal dialog showing behind main frame

From:

"Sheng Jiang[MVP]" <sheng_jiang@hotmail.com.discuss>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 9 Oct 2007 00:16:44 -0500

Message-ID:

<#Gfxi8cCIHA.5160@TK2MSFTNGP05.phx.gbl>

Actually you need to set the dialog's parent to the currect window. Either
the frame window or its last active popup window.

--
Sheng Jiang
Microsoft MVP in VC++
"Carol" <jeffcmj@hotmail.com> wrote in message
news:1191846473.548319.140320@r29g2000hsg.googlegroups.com...

Yes. CFileDialog is. But it does not solve the problem. I have already
set view window as thread's pMainWnd. Some modal dialogs still go
behind main frame, like the CFileDialog and dialogs popup from
activex( assume I put an active in the view which would popup a modal
dialog).

Joseph M. Newcomer <newco...@flounder.com> wrote:

Actually CFileDIalog IS derived from CDIalog. Check the documentation!
joe

On Sun, 07 Oct 2007 03:29:22 -0700, Carol <jeff...@hotmail.com> wrote:

Thanks. I have already did it, set the view window as thread's
pMainWnd. But it does not work. And when I said 'Modal dialog' I mean
all modal dialog like the File->Open dialog, it's not derived from
CDialog.

On 10 7 , 12 49 , "Doug Harrison [MVP]" <d...@mvps.org> wrote:

On Sat, 06 Oct 2007 05:08:46 -0700, jeff...@hotmail.com wrote:

Hi,

I have a MDI program which created the view in a UI thread (I know
it's advised not to do so, we have some reason to do it). Actually
everything goes fine except one problem, sometimes the modal diaog
from the main thread will be put BEHIND the main frame, causing the
whole program locked up (because we can not click to cancel the
dialog). I heard it's somewhat related to tooltip, but I don't know
how to avoid it.

Any advice is appreciated.

No guarantees, but setting the thread's m_pMainWnd to AfxGetMainWnd()

might

work. It should allow the CDialog code to determine your main window

to be

the dialog's parent, as it does when all the UI is in a single

thread.

Alternatively, you could try passing AfxGetMainWnd() to the CDialog
constructor.

--
Doug Harrison
Visual C++ MVP

Joseph M. Newcomer [MVP]
email: newco...@flounder.com
Web:http://www.flounder.com
MVP Tips:http://www.flounder.com/mvp_tips.htm- -

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