glXImportContextEXT(3G)	    OpenGL Reference - GLX     glXImportContextEXT(3G)

NAME    [Toc]    [Back]

     glXImportContextEXT - import another process's indirect rendering
     context.

C SPECIFICATION    [Toc]    [Back]

     GLXContext	glXImportContextEXT( Display *dpy,
				     GLXContextID contextID )

PARAMETERS    [Toc]    [Back]

     dpy	Specifies the connection to the	X server.


     contextID	Specifies a GLX	rendering context.

DESCRIPTION    [Toc]    [Back]

     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 GLX_EXT_import_context is included	in the
     string returned by	glXQueryExtensionsString, when called with argument
     GLX_EXTENSIONS, extension EXT_import_context is supported.

ERRORS    [Toc]    [Back]

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









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glXImportContextEXT(3G)	    OpenGL Reference - GLX     glXImportContextEXT(3G)



SEE ALSO
     glXCreateContext, glXQueryVersion,	glXQueryExtensionsString,
     glXGetContextIDEXT, glXFreeContextEXT


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