   Update while being dragged
  (I first posted this in the OpenGL section, but no one replied.. So it's here now)I don't know much about the program flow between my program and windows. So I have a question.My goal is to be able to update the GL window (in windowed mode of course) and draw it as I am holding it by the title bar. It seems to me like the program completely halts until I release the title bar.Is it possible to update a window while it's being dragged?Thanks   
  What you're describing has nothing to do with how you've written your app.  Here are the steps to rectify the situation:-Right click on your desktop-Click the "Effects" tab-Check the option for "Show window contents while dragging"-Click "OK"   ;  [edit: I am assuming that you are programming for the Windows platform]Note that I've never tried the following, so it may be incorrect.I think what you could try is to do update and draw calls in WM_MOVING and WM_SIZING message handlers. The problem with this, depending on how your application is organized, is that you may not have visibility of your engine classes/variables from your message handler, so a (pseudo)global *shudder* may be necessary.Again, this is something of a shot in the dark.jfl.   ;  Same AP as before.  I had forgotten step 2:-Click "Properties"   