How do I "link your program to the OpenGL library"?

[xzbobzx]

According to http://www.sfml-dev.org/tutorials/2.0/window-opengl.php, I need to link my program to the opengl32 library.

The what now?
How do I do this?

I'm getting these:

1>main.obj : error LNK2019: unresolved external symbol __imp__glClear@4 referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol __imp__glViewport@16 referenced in function _main

[eXpl0it3r]

What have you done? Where are you stuck? What compiler do you use? What OS do you use?

If you don't know how to link libraries, you should definitely google a bit on this topic, since this is an essential subject in programming.

[xzbobzx]

Microsoft Visual Studio 2010 Express, windows, did everything setting up a regular SFML program.
I'm stuck at where I have to find the OpenGL libraries, it's all black pixie dust and magic for me.

[eXpl0it3r]

I'm stuck at where I have to find the OpenGL libraries, it's all black pixie dust and magic for me.

Are you sure you want to start with OpenGL then? Because understanding OpenGL is lot more complicated, than linking one library...

In the project settings, where you've linked against SFML (i.e. where you wrote sfml-window.lib), you'll simply have to add opengl32.lib.

[Nexus]

Don't forget the .lib postfix.

But just to make it clear: You don't need to link OpenGL in order to use SFML. It is only necessary if you use OpenGL functions yourself. Which I don't recommend unless you know exactly what you do.

[xzbobzx]

Don't forget the .lib postfix.

But just to make it clear: You don't need to link OpenGL in order to use SFML. It is only necessary if you use OpenGL functions yourself. Which I don't recommend unless you know exactly what you do.

I know I don't need OpenGL for SFML, but I'd like to try my hand at OpenGL.

I'm stuck at where I have to find the OpenGL libraries, it's all black pixie dust and magic for me.

Are you sure you want to start with OpenGL then? Because understanding OpenGL is lot more complicated, than linking one library...

In the project settings, where you've linked against SFML (i.e. where you wrote sfml-window.lib), you'll simply have to add opengl32.lib.

Thank you!
Works like a charm