NAME
XtCallCallbacks, XtCallCallbackList, XtHasCallbacks - process callbacks
SYNTAX
void XtCallCallbacks(Widget w, String callback_name, XtPointer
call_data);
void XtCallCallbackList(Widget w, XtCallbackList callbacks,
XtPointer call_data);
typedef enum {XtCallbackNoList, XtCallbackHasNone, XtCallbackHasSome}
XtCallbackStatus;
XtCallbackStatus XtHasCallbacks(Widget w, String callback_name);
ARGUMENTS
callback_name
Specifies the callback list.
call_data
Specifies a callback-list specific data value to pass to each of the callback
procedure in the list.
callbacks
Specifies the callback list to be executed.
w
Specifies the widget.
DESCRIPTION
The
function calls each procedure that is registered in the specified widget's
callback list.
If callbacks is not NULL,
calls each of the callback procedures in the list, passing client data
and call_data. The callbacks parameter must specify the
contents of a widget or object resource declared with representation
type
The
function first checks to see if the widget has a callback list identified
by callback_name.
If the callback list does not exist,
returns
If the callback list exists but is empty,
it returns
If the callback list exists and has at least one callback registered,
it returns
SEE ALSO
XtAddCallback(3Xt)
