glXGetVisualFromFBConfig.3G man page

glXGetVisualFromFBConfig — return visual that is associated with the frame buffer configuration

C Specification

XVisualInfo * glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig config);

Parameters

dpy

Specifies the connection to the X server.

config

Specifies the GLX frame buffer configuration.

Description

If config is a valid GLX frame buffer configuration and it has an associated X Visual, then information describing that visual is returned; otherwise NULL is returned. Use XFree to free the data returned.

Notes

glXGetVisualFromFBConfig is available only if the GLX version is 1.3 or greater.

If the GLX version is 1.1 or 1.0, the GL version must be 1.0. If the GLX version is 1.2, then the GL version must be 1.1. If the GLX version is 1.3, then the GL version must be 1.2.

XVisualInfo is defined in Xutil.h. It is a structure that includes visual, visualID, screen, and depth elements.

Errors

Returns NULL if config is not a valid GLXFBConfig.

See Also

glXGetFBConfigAttrib(), glXChooseFBConfig(), glXChooseVisual(), glXGetConfig()

Authors

opengl.org

Info

02/04/2016 opengl.org OpenGL Manual