Re: Text window not displaying inside loop

From:
Lilith <lilith@dcccd.edu>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 29 Jun 2007 22:56:57 -0500
Message-ID:
<m3lb8392p6klt2mplv9o432t1kbf2hs3jr@4ax.com>
Thanks. I think I can do that. :-)

Lilith

On Fri, 29 Jun 2007 15:18:47 -0700, "Tom Serface"
<tom.nospam@camaswood.com> wrote:

oops hit wrong key... sorry:

//
// Release main thread for background processing
//
void GiveTime()
{
// Idle until the screen redraws itself, et. al.
MSG msg;
while (::PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) ) {
 if (!AfxGetThread()->PumpMessage( )) {
  ::PostQuitMessage(0);
  break;
 }
}
// let MFC do its idle processing
LONG lIdle = 0;
while (AfxGetApp()->OnIdle(lIdle++ ))
 ;
}

So in your example you could do something like:

CString Output;
while (CountDown--) {
    Output.Empty();

         // extract figures and format into Output

    m_DriveList.SetWindowText (Output); // display figures
   GiveTime(); // Allow UI to update
}

Tom

"Lilith" <lilith@dcccd.edu> wrote in message
news:q6va831t2ksp0o3ehdl643cggurail6cgn@4ax.com...

I have a utilty I'm in the process of writing for montoring the amount
of remaining space on a number of network drives. I'm adding
functionality to loop every X-seconds then checking the figures again.
Eventually these figures will be written to a file but for now I'm
trying to display them fresh on each loop to a text box.

CString Output;
while (CountDown--) {
Output.Empty();
.
. // extract figures and format into Output
.

m_DriveList.SetWindowText (Output); // display figures
Sleep (1000); // wait a second
}

In the current configuration this should accumulate the figures and
put them in Output. I can vouch that this is being done. My problem
is that the text window won't display until the while loop is
finished. Due to an earlier glitch, when I hadn't emptied Output at
the top of the loop, I could tell that the text was being placed in
the text box because I watched the vertical scroll bar react. But it
never displayed.

Is there something I need to do to force the display? Or is this
expected behavior?

--
TIA,
Lilith

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