Re: help updating dialog box with status message

Most of the time (in C++ and MFC) people will either put the offending code
loop (reading the file in this case) in a thread or do a message pump to
allow the UI to update regularly. I do either depending on how often the
read is done and the complexity of it all. I have a function:

//
// 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++ ))
  ;
}

That I call in loops like this every once in a while to allow other messages
to be processed.

int nBlocksRead = 0;
while(ReadABlock()) {
         ++nBlocksRead();
           if((nBlocksRead % 10) == 0) // Free up every 10th block
              GiveTime();
    }
}

Tom

<marks542004@yahoo.com> wrote in message
news:1182206802.937997.26580@g37g2000prf.googlegroups.com...