Is there something like OpenGL overlay spec?

OpenGL
1

I wonder there is some document to regulate the implementation of opengl overlay? just like extension spec.

I only find a overlay example at Nate Robins’ site. Many thanks!

2

I could find nothing as detailed as a spec.
Anyway, those links can help :
http://www.opengl.org/resources/faq/technical/contexts.htm
http://www.opengl.org/documentation/specs/glut/spec3/node29.html

And some bits talking about “overlay” and “layer” here, but nothing detailed :
http://www.opengl.org/registry/specs/ARB/wgl_pixel_format.txt

Personally, I always stayed away from this “overlay” thingy :slight_smile:

3

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