XtAppAddActionHook(3Xt) XT FUNCTIONS XtAppAddActionHook(3Xt)NAME
XtAppAddActionHook, XtRemoveActionHook - register an
action hook procedure
SYNTAX
XtActionHookId XtAppAddActionHook(app_context, proc,
client_data)
XtAppContext app_context;
XtActionHookProc proc;
XtPointer client_data;
void XtRemoveActionHook(idFP)
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 pro-
cedure from the list in which it was registered.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 Release 6.4 1
