Get the address of a GL function
Returns the address of the GL function proc, or NULL if the function is not found.
Binds to C-function call in SDL_video.h:
void *SDL_GL_GetProcAddress(const char* proc);
typedef void (*GL_ActiveTextureARB_Func)(unsigned int); GL_ActiveTextureARB_Func glActiveTextureARB_ptr = 0; int has_multitexture=1; . . . /* Get function pointer */ glActiveTextureARB_ptr=(GL_ActiveTextureARB_Func) SDL_GL_GetProcAddress("glActiveTextureARB"); /* Check for a valid function ptr */ if(!glActiveTextureARB_ptr) { fprintf(stderr, "Multitexture Extensions not present.\n"); has_multitexture=0; } . . . . if(has_multitexture) { glActiveTextureARB_ptr(GL_TEXTURE0_ARB); . . } else { . . }
Sdl Class | Tao.Sdl Namespace | SDL_GL_LoadLibrary