glXGetVisualFromFBConfig — return visual that is associated with the frame buffer configuration
Specifies the connection to the X server.
Specifies the GLX frame buffer configuration.
config is a valid GLX frame buffer configuration
and it has an associated X Visual, then
information describing that visual is returned; otherwise
is returned. Use
XFree to free the data returned.
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.
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