Subwindows in MFC, OpenGL

I use MFC and want to create a document-window with many Subwindows, and OpenGL scenes rendered in each one of them. Anyone knows how to do this or where to get information about it?

Is a MDI application?

What do you need know?

If the problem is have a lot OpenGL context, you must set the current context before begin to draw on the specific window.

I think this is what you want.

Joe Houston, Creating 3D Tools with MFC.

This is an excellent tutorial on the use of OpenGL and MFC Splitter Windows.