glXGetVisualFromFBConfig(3G) OpenGL Reference - GLX
NAME
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
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