How do I calculate the area of a CMDIFrameWnd''s client rect which is not covered by toolbars, status bars, etc.? What I want to do is create 4 child windows in a CMDIFrameWnd which each have equal size, but if I use GetClientRect() to calculate the size of the space I''m dividing into fourths, my toolbars cover part of the child windows. What''s the easiest way to determine the area of a client rect which is not covered by control bars? Thanks in advance for any help! ----Blah

Ignore the frame window, use the client rect from your CViewDerivitive. The CView is not covered by toolbars.

You say you want four child windows? Try using a "static" splitter. The MFC App Wizard can give you a "dynamic" splitter. You have to read the MSDN docs to see exactly how to use a static splitter, but the CFrameWndDerivative creates the Splitter, tells it how many panes to have(rows and cols) then adds the CViews to each pane in the splitter.