glxgetcontextidext(3) [xfree86 man page]

GLXGETCONTEXTIDEXT()													      GLXGETCONTEXTIDEXT()

NAME

       glXGetContextIDEXT - get the XID for a context.

C SPECIFICATION

       GLXContextID glXGetContextIDEXT( const GLXContext ctx )

       delim $$

PARAMETERS

       ctx  Specifies a GLX rendering context.

DESCRIPTION

       glXGetContextIDEXT returns the XID associated with a GLXContext.

       No round trip is forced to the server; unlike most X calls that return a value, glXGetContextIDEXT does not flush any pending events.

       glXGetContextIDEXT 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 ctx does not refer to a valid context.

SEE ALSO

       glXCreateContext, glXQueryVersion, glXQueryExtensionsString

															      GLXGETCONTEXTIDEXT()

GLXIMPORTCONTEXTEXT()													     GLXIMPORTCONTEXTEXT()

NAME

       glXImportContextEXT - import another process's indirect rendering context.

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 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 sup-
       ported.

ERRORS

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

SEE ALSO

       glXCreateContext, glXQueryVersion, glXQueryExtensionsString, glXGetContextIDEXT, glXFreeContextEXT

															     GLXIMPORTCONTEXTEXT()