NAME
XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks,
XtRemoveAllCallbacks - add and remove callback procedures
SYNTAX
void
XtAddCallback(Widget w, String callback_name, XtCallbackProc
callback, XtPointer client_data);
void
XtAddCallbacks(Widget w, String callback_name, XtCallbackList
callbacks);
void
XtRemoveCallback(Widget w, String callback_name, XtCallbackProc
callback, XtPointer client_data);
void
XtRemoveCallbacks(Widget w, String callback_name, XtCallbackList
callbacks);
void
XtRemoveAllCallbacks(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(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface