XtAddCallback(3Xt) X11R5 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 call‐
back 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 speci‐
fied widget's callback list.
The 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)
