XtAppAddActionHook
Section: XT FUNCTIONS (3)
Updated: libXt 1.0.7
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NAME
XtAppAddActionHook, XtRemoveActionHook - register an action hook procedure
SYNTAX
-
- XtActionHookId XtAppAddActionHook(XtAppContext app_context,
XtActionHookProc proc, XtPointer client_data);
-
- void XtRemoveActionHook(XtActionHookId id);
ARGUMENTS
- app_context
-
Specifies the application context.
- proc
-
Specifies the action hook procedure.
- num_args
-
Specifies the application-specific data to be passed to the action hook.
DESCRIPTION
XtAppAddActionHook
adds the specified procedure to the front of a list maintained in the
application context. In the future, when an action routine is about to
be invoked for any widget in this application context, either through
the translation manager or via
XtCallActionProc,
the action hohok procedures will be called in reverse order of registration
jut prior to invoking the action routine.
Action hook procedures are removed automatically and the
XtActionHookId
s destroyed when the application context in which they were added is
destroyed.
XtRemoveActionHook
removes the specified action hook procedure from the list in which it
was registered.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface