calling OpenGL methods from outside the main class

Hi,

I'm new to both C++ and OpenGL. (Kind of dumb to try and learn them both at the same time, but meh, it keeps me interested.) Anyway I should ask about this, since I'm probably misunderstanding something fundamental, what actually happens when you call an OpenGL method from another class?

I'm trying to make a simple game structure. I've made a class I've just called 'World'. I construct a world object and pass it the information it needs to load a level. They I call various methods which get it to load in what it needs, which eventually will be textures and models and whatnot. For the moment all it does is build a single display list which is stored as a member field. My draw method back in the main code then calls glCallList on the field in my World object .

The problem is that the display list isn't drawn. When I copy the list building method back into my main file it works fine. I'm not sure what's going on here.

You can call OpenGL-function from any class and function. OpenGL will keep track of the states you have set and such. Now I dont think its a good thing at all, actually its a very bad thing, to learn opengl and c++ at the same time. It will just get too much for you, and you wont understand things fully.

Thanks for the reply Shakti. (There was in fact just something wrong with the way I made the display list in the World class, so now it's all fixed.)