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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(id)
	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 rou-
  tine 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 des-
  troyed.

  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



















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