Example 2

if( WindowManager.Instance.MainForm.ActiveMdiChild != null )

{

   _activeCtrl = WindowManager.Instance.MainForm.ActiveMdiChild.ActiveControl;

   if(_activeCtrl != null && !(_activeCtrl is AxDrawingControl))

   {

       foreach(System.Windows.Forms.Control ctrl in

       WindowManager.Instance.MainForm.ActiveMdiChild.ActiveControl.Controls)

      {

          if(ctrl is AxDrawingControl)

          {

              _activeCtrl = ctrl;

              break;

          }

      }

   }

}

When the Visio.Application instance is obtained from the Drawing Control it is possible to invoke any of the Visio API methods available to customize the drawing.