xtaddcallback(3xt) [ultrix man page]

XtAddCallback(3Xt)						     MIT X11R4							XtAddCallback(3Xt)

Name
       XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks - add and remove callback procedures

Syntax
       void XtAddCallback(w, callback_name, callback, client_data)
	  Widget w;
	  String callback_name;
	  XtCallbackProc callback;
	  XtPointer client_data;

       void XtAddCallbacks(w, callback_name, callbacks)
	  Widget w;
	  String callback_name;
	  XtCallbackList callbacks;

       void XtRemoveCallback(w, callback_name, callback, client_data)
	  Widget w;
	  String callback_name;
	  XtCallbackProc callback;
	  XtPointer client_data;

       void XtRemoveCallbacks(w, callback_name, callbacks)
	  Widget w;
	  String callback_name;
	  XtCallbackList callbacks;

       void XtRemoveAllCallbacks(w, callback_name)
	  Widget w;
	  String callback_name;

Arguments
       callback  Specifies the callback procedure.

       callbacks Specifies the null-terminated list of callback procedures and corresponding client data.

       callback_name
		 Specifies the callback list to which the procedure is to be appended or deleted.

       client_data
		 Specifies the argument that is to be passed to the specified procedure when it is invoked by XtCallbacks or NULL, or the client
		 data to match on the registered callback procedures.

       w	 Specifies the widget.

Description
       The function adds the specified callback procedure to the specified widget's callback list.

       The add the specified list of callbacks to the specified widget's callback list.

       The function removes a callback only if both the procedure and the client data match.

       The function removes the specified callback procedures from the specified widget's callback list.

       The function removes all the callback procedures from the specified widget's callback list.

See Also
       XtCallCallbacks(3Xt)
       X Window System Toolkit: The Complete Programmer's Guide and Specification, Paul J. Asente and Ralph Swick
       X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys

																XtAddCallback(3Xt)

XtAddCallback(3Xt)						   XT FUNCTIONS 						XtAddCallback(3Xt)

NAME

       XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks - add and remove callback procedures

SYNTAX

       void XtAddCallback(w, callback_name, callback, client_data)
	     Widget w;
	     String callback_name;
	     XtCallbackProc callback;
	     XtPointer client_data;

       void XtAddCallbacks(w, callback_name, callbacks)
	     Widget w;
	     String callback_name;
	     XtCallbackList callbacks;

       void XtRemoveCallback(w, callback_name, callback, client_data)
	     Widget w;
	     String callback_name;
	     XtCallbackProc callback;
	     XtPointer client_data;

       void XtRemoveCallbacks(w, callback_name, callbacks)
	     Widget w;
	     String callback_name;
	     XtCallbackList callbacks;

       void XtRemoveAllCallbacks(w, callback_name)
	     Widget w;
	     String callback_name;

ARGUMENTS

       callback  Specifies the callback procedure.

       callbacks Specifies the null-terminated list of callback procedures and corresponding client data.

       callback_name
		 Specifies the callback list to which the procedure is to be appended or deleted.  or the client data to match on the registered
		 callback procedures

       client_data
		 Specifies the argument that is to be passed to the specified procedure when it is invoked by XtCallbacks or NULL,.

       w	 Specifies the widget.

DESCRIPTION

       The XtAddCallback function adds the specified callback procedure to the specified widget's callback list.

       The XtAddCallbacks add the specified list of callbacks to the specified widget's callback list.

       The XtRemoveCallback function removes a callback only if both the procedure and the client data match.

       The XtRemoveCallbacks function removes the specified callback procedures from the specified widget's callback list.

       The XtRemoveAllCallbacks function removes all the callback procedures from the specified widget's callback list.

SEE ALSO

       XtCallCallbacks(3Xt)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11							    Release 6.6 						XtAddCallback(3Xt)