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GLXIMPORTCONTEXTEXT(3G)		 OpenGL Manual	       GLXIMPORTCONTEXTEXT(3G)

NAME
       glXImportContextEXT - import another process's indirect rendering
       context.

C SPECIFICATION
       GLXContext glXImportContextEXT(Display * dpy, GLXContextID contextID);

PARAMETERS
       dpy
	   Specifies the connection to the X server.

       contextID
	   Specifies a GLX rendering context.

DESCRIPTION
       glXImportContextEXT creates a GLXContext given the XID of an existing
       GLXContext. It may be used in place of glXCreateContext(), to share
       another process's indirect rendering context.

       Only the server-side context information can be shared between X
       clients; client-side state, such as pixel storage modes, cannot be
       shared. Thus, glXImportContextEXT must allocate memory to store
       client-side information. This memory is freed by calling
       glXFreeContextEXT().

       This call does not create a new XID. It merely makes an existing object
       available to the importing client (Display *). Like any XID, it goes
       away when the creating client drops its connection or the ID is
       explicitly deleted. Note that this is when the XID goes away. The
       object goes away when the XID goes away AND the context is not current
       to any thread.

       If contextID refers to a direct rendering context then no error is
       generated but glXImportContextEXT returns NULL.

       glXImportContextEXT 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 contextID does not refer to a valid
       context.

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

COPYRIGHT
       Copyright © 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			  03/16/2013	       GLXIMPORTCONTEXTEXT(3G)

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