Re: How to set GUI thread parent window?

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 04 Aug 2006 11:38:23 -0400

Message-ID:

<emw62v9tGHA.2172@TK2MSFTNGP05.phx.gbl>

kathy wrote:

My main application is a SDI application which call a dll to display a
Dialog Box. I am only working on the dll part( I do not have the main
application code).

The dialog box must be a modeless dialog which should show in the
following DLL interface:

INT ShowDialog()
{
  //show dialog

  return dialog_box_exit_code

}

For Modal Dialog Box , it is easy:
INT ShowDialog()
{
  CMyDialogBox dlg;

  return dlg.DoModel();

}

In the modal case the function does not return and the calling
application GUI is disabled while the dialog is displayed. That is the
way modal dialogs are supposed to work.

In the modeless case the function must return immediately after creating
the dialog so the calling application GUI can continue to operate.
Your desire to return an exit code from the modeless dialog creation
function is inconsistent with the behavior of modeless dialogs. You
can't do that if you want modeless behavior. You should, instead,
generate an event to the application when the modeless dialog is closed.

--
Scott McPhillips [VC++ MVP]