GLX_SGIX_fbconfig http://www.opengl.org/registry/specs/SGIX/fbconfig.txt GLX_SGIX_fbconfig GLX_RGBA_BIT_SGIX 0x00000001 GLX_WINDOW_BIT_SGIX 0x00000001 GLX_COLOR_INDEX_BIT_SGIX 0x00000002 GLX_PIXMAP_BIT_SGIX 0x00000002 GLX_SCREEN_EXT 0x800C GLX_DRAWABLE_TYPE_SGIX 0x8010 GLX_RENDER_TYPE_SGIX 0x8011 GLX_X_RENDERABLE_SGIX 0x8012 GLX_FBCONFIG_ID_SGIX 0x8013 GLX_RGBA_TYPE_SGIX 0x8014 GLX_COLOR_INDEX_TYPE_SGIX 0x8015 GLXFBConfigSGIX* glXChooseFBConfigSGIX (Display *dpy, int screen, const int *attrib_list, int *nelements) GLXContext glXCreateContextWithConfigSGIX (Display* dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct) GLXPixmap glXCreateGLXPixmapWithConfigSGIX (Display* dpy, GLXFBConfig config, Pixmap pixmap) int glXGetFBConfigAttribSGIX (Display* dpy, GLXFBConfigSGIX config, int attribute, int *value) GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX (Display* dpy, XVisualInfo *vis) XVisualInfo* glXGetVisualFromFBConfigSGIX (Display *dpy, GLXFBConfig config) typedef XID GLXFBConfigIDSGIX typedef struct __GLXFBConfigRec *GLXFBConfigSGIX