glXImportContextEXT

GLXIMPORTCONTEXTEXT()					GLXIMPORTCONTEXTEXT()



NAME
       glXImportContextEXT - import another process’s indirect rendering con-
       text.


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

       delim $$

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 glXFreeCon-
       textEXT.

       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
       GLXBadContext is generated if contextID does not refer to a valid con-
       text.


SEE ALSO
       glXCreateContext,  glXQueryVersion,  glXQueryExtensionsString, glXGet-
       ContextIDEXT, glXFreeContextEXT



							GLXIMPORTCONTEXTEXT()