Flicker-free Drawing?

Quick question:


I've got a list box that I want to fill with a bunch of data.


How do I tell the listbox not to repaint itself until all the data has been added?


MFC equivalent:

LockWindowUpdate();

//add some stuff

UnlockWindowUpdate();


Toolbook (ugh..) Equivalent:


SysLockScreen = true

//do something

SysLockScreen = false


In the MSDN libary, they just say "hide the control first", but then there's just empty space there, which looks silly.


As a side note, the flicker only shows up in Win95, not winNT...


TIA,

Ryan

Well, I tried using SendMessage(WM_SETREDRAW), but this isn't doing what I need.


The problem occurs in a multithreaded app.

Each thread has a progress bar associated w/ it. As the thread progresses, so does the progress bar(!)

However, in win95, the progressbar flickers after each refresh.

In WinNT, it doesn't.


I'm not using a "real" mscomctrl progress bar, but rather Steve Butler's enchanced progress bar (w/ text overlay). Found at:


http://www.pncl.co.uk/~sbutler/activex.htm (also under OCX Controls on codeguru)


Any ideas?

Your MFC code for the API LockWindow works the same way in VB... But it would be kinda useless to use it on a progress bar. I'm pretty sure that there really isn't anything you can do about it, its the controls fault. I think there is a flicker free CCRP progress bar that isn't supposed to flicker.