TSysEvtHandler

class TSysEvtHandler : public TObject, public TQObject

    private:

      virtual void* GetSender()

    public:

              virtual ~TSysEvtHandler()
                 void Activate()
         virtual void Activated()
         virtual void Add()
         virtual void Added()
       static TClass* Class()
                 void DeActivate()
         virtual void DeActivated()
      virtual TClass* IsA() const
               Bool_t IsActive() const
         virtual void Notified()
       virtual Bool_t Notify()
         virtual void Remove()
         virtual void Removed()
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      Bool_t fIsActive  kTRUE if handler is active, kFALSE if not active

                                                                      
 TSysEvtHandler                                                       
                                                                      
 Abstract base class for handling system events.                      
                                                                      

 Activate a system event handler. All handlers are by default
 activated. Use this method to activate a de-activated handler.

 De-activate a system event handler. Use this method to temporarily
 disable an event handler to avoid it from being recursively called.
 Use DeActivate() / Activate() instead of Remove() / Add() for this
 purpose, since the Add() will add the handler back to the end of
 the list of handlers and cause it to be called again for the same,
 already handled, event.