Hi,

glext.h is file which allows to access higher OpenGL via extension mechanism.
You first have to check if feature is supported, obtain its handle and call it using prototype.
I am not sure if it is possible in thinBASIC now, but I think it should not be hard to add.

It is done this way, becase it is only case where you can avoid "Missing export..." in case function is not found.

glext.h can be obained on card manufacturers websites ( customized for your card ) or more general on OpenGL web - here.


Bye,
Petr