Thread: Qt + OpenGL Extensions

Hello,

J `s`'d need you like me some advice concerning the use of OpenGL extensions in QT.
Then voila, it is recommended (I think he) d `load autommatique use GLEW to directly load all extensions.

However, there is a problem with inclusion of `error as before declaring gl.h glew.h. But for certain uses QT widget `s inclusion of these files gl.h. .. Thus if I have two files that I want to use features of the extension and glew and that these same files must be included in another, there is always this problem of `inclusion.

L `Another method is to load the functions manually. Is this the right way to do?

Code:

1.	main.h
2.	
3.	# include <GL\glext.h>
4.	
5.	PFNGLACTIVETEXTUREARBPROC glActiveTextureARB = NULL;
6.	PFNGLMULTITEXCOORD2FARBPROC glMultiTexCoord2fARB = NULL;
7.	
8.	glActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) wglGetProcAddress ( "glActiveTextureARB");
9.	glMultiTexCoord2fARB = (PFNGLMULTITEXCOORD2FARBPROC) wglGetProcAddress ( "glMultiTexCoord2fARB");

Code:

1.	another file:
2.	
3.	
4.	extern const PFNGLACTIVETEXTUREARBPROC glActiveTextureARB;
5.	extern const PFNGLMULTITEXCOORD2FARBPROC glMultiTexCoord2fARB;

Thank you.

Since you contacted me by PM, I can just tell you what I did was via GLEW, but it was a project out QT.

You can try to pass through a header which then included glew.h gl.h before the QT headers.

Thank you for the answer. N `having not really find the answer to the problem of multiples inclusions and Glew, I have choose to load the function pointers of the extension manually (with the loading of windows).

Thank you.