OpenGL/GLUT error

[TBBucs]

I'm new to OpenGL and am trying to compile and run a program that I found in a tutorial. It compiles, but when I run it, I get this message:


freeglut (./basicshapes): ERROR: Internal error <Visual with necessary capabilities not found> in function fgOpenWindow
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 4 (X_DestroyWindow)
Resource id in failed request: 0x0
Serial number of failed request: 20
Current serial number in output stream: 23
From what I've read in other places, it seems that this usually refers to a problem with my graphics card and OpenGL, but when I check the OpenGL/GLX Information tab of my X Server settings, it says Direct Rendering: Yes, which I understand to be what I'm looking for.

This is my glInitDisplayMode line:


glutInitDisplayMode(GL_DOUBLE | GL_RGB | GL_DEPTH);Like I said, I'm following a tutorial, so I'm not yet sure what those parameters actually do, but I've read that that is sometimes the problem.

Thoughts?

[Senesence]

Could you post the code?

[TBBucs]

Ah, I actually just figured it out. This line:


glutInitDisplayMode(GL_DOUBLE | GL_RGB | GL_DEPTH);

...should be


glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);

That's one of the risks of typing it out by hand instead of copying and pasting :) Thanks for your response, though.