Re: Modal dialog as thread
"Rami" <rami@intern.net> wrote in message
news:OktKc2JIIHA.4712@TK2MSFTNGP04.phx.gbl...
The following 3 step procedure was taken form CodeGuru article named
Convert modal dialogs to modeless by Jon S. Kyle
It works greate but I can't figure out how to modify controls text on the
dialog box while its already diplayed.
Can someone advise please?
Rami
1. In your header file define a CWinThread-derived class...
class CDialogThread : public CWinThread
{
DECLARE_DYNCREATE(CDialogThread)
CDialogThread() {};
virtual BOOL InitInstance();
};
2. Put this in your implementation file (where CSomeDialog is a
conventional dialog class defined the usual way).
IMPLEMENT_DYNCREATE(CDialogThread, CWinThread)
BOOL CDialogThread::InitInstance()
{
CSomeDialog dlg;
dlg.DoModal();
return FALSE;
}
3. To create an instance of your (now-modeless) modal dialog, do this...
AfxBeginThread ( RUNTIME_CLASS(CDialogThread) );
Well, life is much simpler and less troublesome (especially for a MFC
threading newbie) if you put all GUI in the main thread. So first you
should consider making a modeless dialog in your main thread. Why would you
want to put a modal dialog in a secondary thread? This is probably a
mistake.
But if you must, then what you need to do is make the dialog's HWND
available to the main thread. Perhaps store it someplace during the
dialog's InitInstance. The main thread can then use
::PostMessage(dlghwnd,....) to post custom messages to the dialog. The
dialog message handlers, in turn, can access and update the dialog's
controls. See example here: http://vcfaq.mvps.org/mfc/12.htm
--
Scott McPhillips [VC++ MVP]
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