XtAddCallback(3Xt)XtAddCallback(3Xt)NAME
XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks,
XtRemoveAllCallbacks - add and remove callback procedures
SYNOPSIS
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
Specifies the callback procedure. Specifies the null-terminated list
of callback procedures and corresponding client data. 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 Speci‐
fies 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. 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 pro‐
cedure and the client data match.
The XtRemoveCallbacks function removes the specified callback proce‐
dures from the specified widget's callback list.
The XtRemoveAllCallbacks function removes all the callback procedures
from the specified widget's callback list.
SEE ALSOXtCallCallbacks(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtAddCallback(3Xt)
