Open-GL: a scene without a visible window?

[me-$-on]

Hello.
I asked myself, if it is possible to create a scene without a window.
Using simple Win32Api.
Of course i would have to set and update the clipping area with every move of the primitive i want to be shown on screen ( and of those regions, which was covered by the primitive and now arent covered anymore and vice versa).
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Let's start a bit easier.
I chose to display a non moving open-gl primitive like a poly inside a window.
I tried svereral clipping methods to clip the window region around the primitive but it does not seem to work.
(I must admit, my transformation from WinApi coordinates to open-GL coordinates was not the best) but even the nearly right coordinate-values did not seem to work.
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Further idea would be to do the same with a moving poly.
What should i concentrate on to make this possible?
THX

[me-$-on]

Sorry, only the one who searches, will compete.

http://www.codeguru.com/forum/archiv.../t-195402.html

[bitshifter420]

If im understanding your question correctly, i assume you would like to create a window with no border, titlebar or menu.
This can be done in the CreateWindowEx function when you create the applications main window.
Use 0 for the dwExStyle param, and use WS_POPUP for the dwStyle param.
A popup window has no titlebar, border or menu.
These window styles can be found within the "winuser.h" header file.
Hope this helps...