Drawing and Flickering

• Is there a way of "batching" updates to the screen? I would like to perform all updates and then have the screen re-paint instead of between updates.
  
  
• I am frequently updating the grid. The problem is that is starts flickering a lot. Is there a way to turn 1 off the flickering?
  
  
• We have embedded a grid window into a CView. Whenever the view is drawn, the grid window gets erased and we get a lot of flickering. What can we do?