// Copyright 2010 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.Generic;
using System.Text;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.DataManagementTools;
using ESRI.ArcGIS.Geoprocessor;
using GeoprocessorEventHelper;

namespace TestListner
{
  class GPEventListner
  {
    /// <summary>
    /// This sample console app demonstrates listening to GP events as they happen
    /// </summary>
    /// <param name="args"></param>
    static void Main(string[] args)
    {
        ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.Desktop);

      GPMessageEventHandler gpEventHandler = new GPMessageEventHandler();

      //get an instance of the geoprocessor
      Geoprocessor GP = new Geoprocessor();
      //register the event helper in order to be able to listen to GP events
      GP.RegisterGeoProcessorEvents(gpEventHandler);

      //wire the GP events
      gpEventHandler.GPMessage += new MessageEventHandler(OnGPMessage);
      gpEventHandler.GPPreToolExecute += new PreToolExecuteEventHandler(OnGPPreToolExecute);
      gpEventHandler.GPToolboxChanged += new ToolboxChangedEventHandler(OnGPToolboxChanged);
      gpEventHandler.GPPostToolExecute += new PostToolExecuteEventHandler(OnGPPostToolExecute);

      //instruct the geoprocessing engine to overwrite existing datasets
      GP.OverwriteOutput = true;

      //create instance of the 'create random points' tool. Write the output to the machine's temp directory
      CreateFeatureclass createFeatureClass = new CreateFeatureclass(System.IO.Path.GetTempPath(), "RandomPoints.shp");
      //execute the tool
      GP.Execute(createFeatureClass, null);

      //unwire the GP events
      gpEventHandler.GPMessage -= new MessageEventHandler(OnGPMessage);
      gpEventHandler.GPPreToolExecute -= new PreToolExecuteEventHandler(OnGPPreToolExecute);
      gpEventHandler.GPToolboxChanged -= new ToolboxChangedEventHandler(OnGPToolboxChanged);
      gpEventHandler.GPPostToolExecute -= new PostToolExecuteEventHandler(OnGPPostToolExecute);

      //unregister the event helper
      GP.UnRegisterGeoProcessorEvents(gpEventHandler);

      System.Diagnostics.Trace.WriteLine("Done");
    }

    static void OnGPPostToolExecute(object sender, GPPostToolExecuteEventArgs e)
    {
      System.Diagnostics.Trace.WriteLine(e.Result.ToString());
    }

    static void OnGPToolboxChanged(object sender, EventArgs e)
    {
      System.Diagnostics.Trace.WriteLine("OnGPToolboxChanged");
    }

    static void OnGPPreToolExecute(object sender, GPPreToolExecuteEventArgs e)
    {
      System.Diagnostics.Trace.WriteLine(e.Description);
    }

    static void OnGPMessage(object sender, GPMessageEventArgs e)
    {
      System.Diagnostics.Trace.WriteLine(e.Message);
    }
  }
}