XtCallCallbacks
Section: XT FUNCTIONS (3Xt)
Updated: Release 3
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NAME
XtCallCallbacks, XtHasCallbacks - process callbacks
SYNTAX
void XtCallCallbacks(w, callback_name, call_data)
Widget w;
String callback_name;
XtPointer call_data;
typedef enum {XtCallbackNoList, XtCallbackHasNone, XtCallbackHasSome} XtCallbackStatus;
XtCallbackStatus XtHasCallbacks(w, callback_name)
Widget w;
String callback_name;
ARGUMENTS
- callback_name
-
Specifies the callback list to be executed or checked.
- call_data
-
Specifies a callback-list specific data value to pass to each of the callback
procedure in the list.
- w
-
Specifies the widget.
DESCRIPTION
The
XtCallCallbacks
function calls each procedure that is registered in the specified widget's
callback list.
The
XtHasCallbacks
function first checks to see if the widget has a callback list identified
by callback_name.
If the callback list does not exist,
XtHasCallbacks
returns
XtCallbackNoList.
If the callback list exists but is empty,
it returns
XtCallbackHasNone.
If the callback list exists and has at least one callback registered,
it returns
XtCallbackHasSome.
SEE ALSO
XtAddCallback(3Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
Index
- NAME
-
- SYNTAX
-
- ARGUMENTS
-
- DESCRIPTION
-
- SEE ALSO
-
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Time: 07:02:48 GMT, May 19, 2025