centos man page for glxquerycontextinfoext

GLXQUERYCONTEXTINFOE(3G)					   OpenGL Manual					  GLXQUERYCONTEXTINFOE(3G)

NAME
       glXQueryContextInfoEXT - query context information

C SPECIFICATION
       int glXQueryContextInfoEXT(Display * dpy, GLXContext ctx, int attribute, int * value);

PARAMETERS
       dpy
	   Specifies the connection to the X server.

       ctx
	   Specifies a GLX rendering context.

       attribute
	   Specifies that a context parameter should be retrieved. Must be one of GLX_SHARED_CONTEXT_EXT, GLX_VISUAL_ID_EXT, or GLX_SCREEN_EXT.

       value
	   Contains the return value for attribute.

DESCRIPTION
       glXQueryContextInfoEXT sets value to the value of attribute with respect to ctx.  glXQueryContextInfoEXT returns an error code if it fails
       for any reason. Otherwise, Success is returned.

       attribute may be one of the following:

       GLX_SHARED_CONTEXT_EXT
	   Returns the XID of the share list context associated with ctx at its creation.

       GLX_VISUAL_ID_EXT
	   Returns the XID of the GLX Visual associated with ctx.

       GLX_SCREEN_EXT
	   Returns the screen number associated with ctx.

       This call may cause a round-trip to the server.

       glXQueryContextInfoEXT is part of the EXT_import_context extension, not part of the core GLX command set. If
       _glxextstring(EXT_import_context) is included in the string returned by glXQueryExtensionsString(), when called with argument
       GLX_EXTENSIONS, extension EXT_import_context is supported.

ERRORS
       GLXBadContext is generated if ctx does not refer to a valid context.

       GLX_BAD_ATTRIBUTE is returned if attribute is not a valid GLX context attribute.

       fred GLX_BAD_CONTEXT is returned if attribute is not a valid context.

SEE ALSO
       glXCreateContext(), glXQueryVersion(), glXQueryExtensionsString()

COPYRIGHT
       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org							    06/10/2014						  GLXQUERYCONTEXTINFOE(3G)