Mac Forum / Programming / Mac Programming / September 2005

Hi,

Since switching to OSX 10.4 and Xcode 2, I can't get OpenGL to open from
within my application.  In Panther, everything worked fine, both with
CodeWarrior 8.3 and Xcode 1.5.

Previously, I've always used CodeWarrior, but as it's outdated, I am
making the switch to Xcode 2.1 at the same time as trying to get my
graphics to work again. Also, the code was written by someone else, and
I am just modifying it mildly. Therefore, I can't exclude that part of
the problem might be due to some stupid newbie-oversight. (But, as I
said, it worked before.)

I've re-created the project as a command-line tool in Xcode 2.1, added
all source code (in C), added the OpenGL and GLUT frameworks and none,
one or both of the Carbon and Cocoa frameworks (from
/System/Library/Frameworks). Compilation is error-free, and if I don't
call OpenGL from within my config-file, the executable runs without a
glitch.  However, if the config-file does call OpenGL, the program
starts to run (in the terminal), but instead of opening an OpenGL
window, it exits again right away with the following message:

"2005-09-21 14:07:35.783 Smolcode1.59x_wGL[1872] GLUT Fatal Error:
internal error: NSInternalInconsistencyException, reason: Error (1002)
creating CGSWindow

Smoldyn has exited with status 1."

(Smolcode1.59x_wGL is the name of the project, Smoldyn is the target and
executable.)

Googleing for that error message didn't produce anything compatible.  
Does anyone know what might be going on and how I can fix it? Is there a
known bug or a change in syntax or incompatibility of GLUT? Any thoughts
would be sooo welcome!

TIA,
Karen