how to display different things in 2 window at same time?

how to display different things in 2 window at same time?

2 things in 1 window at the same time:-

glViewport
glScissor

2 things in 2 windows at the same time:-
create 2 windows
create 1 hRC
wglMakeCurrent to change rendering from one window to another.

[This message has been edited by knackered (edited 10-23-2002).]