The following are system events in the Kernel object which can be monitored:

• Kernel::m_eFrame - Triggered when a new frame is displayed on the viewport.
• Kernel::m_eEndRender - Triggered when rendering of an image to the screen is completed.
• Kernel::m_eLowMemory - Triggered when memory status is critical.
• Kernel::m_eRestoreMemory - Triggered when memory status is no longer critical.
• Kernel::m_ePostRender - Triggered at end of rendering a scene to a RenderTarget.

The following example demonstrates how to monitor a low memory event.

  class MyClass : public Node

  {

    aevent lowMemoryEventReceiver;

    MyClass()

    {

      lowMemoryEventReceiver.Connect( Kernel()->m_eLowMemory );

    };

    void OnEvent( const EventGate &cEvent )

    {

      if ( cEvent == m_eLowMemory )

      {

        // free some buffers

      }

    }

  };