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Mjaum
02-25-2003, 03:32 PM
Hi,

I'm a new OpenGL-programmer (and new to c++, too), and I've been
trying to learn how to use extensions.

Now, I've been looking at the tutorials at nehe.gamedev.net (lesson
22), and I noticed a strange thing. The code there compiles with the
glext.h included in the download, but if I change it to a newer
version of glext.h, I get a compiler error...

syntax error : missing ';' before identifier 'glMultiTexCoord1fARB'

PFNGLMULTITEXCOORD1FARBPROC' : missing storage-class or type
specifiers

unexpected end of file found


The problem is reported to be with the line:
PFNGLMULTITEXCOORD1FARBPROC glMultiTexCoord1fARB = NULL;

What do I have to change to get it to compile with the new glext.h?

Please help?

-Kristian

02-27-2003, 01:12 AM
I also a newbie on extensions but i think you have some alternatives. One of the best is the Povahalev's extension loading library: http://www.levp.de/3d and look at its FAQ for using it.

M/\dm/\n
02-27-2003, 02:45 AM
I'd recommend you avoiding third party loaders, as they are often buggy & requires a lot of libs, licensing etc.
About problem, can't answer you right now, but best way is to compare both glext's and find lines that causes errors. Maybe that's because GL1.4, or smthn, I have a feeling that NeHe site is verrrrry old (1999 or smthn) you have to check this out. And don't be affraid to edit glext.h (as long as you know what you're doing) http://www.opengl.org/discussion_boards/ubb/smile.gif

Umora
02-27-2003, 06:08 AM
Get new version of glext.h from here http://oss.sgi.com/projects/ogl-sample/ABI/glext.h
this is not newest one (i've download it Feb 19 and it missed ARB_fragment_program definitions) but your function present in that header.

Mjaum
02-27-2003, 10:32 AM
I downloaded a gl.h for opengl 1.1, and then everything worked with the new glext.h. Confusing. http://www.opengl.org/discussion_boards/ubb/smile.gif

However, problem solved. Thanks for the help.