using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Windows.Forms;  
 
 namespace IdentifyPointWithIcon  
 {  
     static class Program  
     {  
         /// <summary>  
         /// The main entry point for the application.  
         /// </summary>  
         [STAThread]  
         static void Main()  
         {  
             Application.EnableVisualStyles();  
             Application.SetCompatibleTextRenderingDefault(false);  
             Application.Run(new TestForm());  
         }  
     }  
 }  
 

 using System;  
 using System.Collections.ObjectModel;  
 using System.Drawing;  
 using System.Windows.Forms;  
 using ThinkGeo.MapSuite.Core;  
 
 namespace IdentifyPointWithIcon  
 {  
     public partial class TestForm : Form  
     {  
         private MapEngine mapEngine = new MapEngine();  
         private Bitmap bitmap = null;  
 
        public TestForm()  
         {  
             InitializeComponent();  
         }  
 
         private void TestForm_Load(object sender, EventArgs e)  
         {  
             // Set the extent and the background color  
             mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-123.75,39.85,-99.88,26.04), Map.Width, Map.Height);  
             mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);  
 
             //Displays the World Map Kit as a background.  
             ThinkGeo.MapSuite.Core.WorldMapKitLayer worldMapKitLayer = new ThinkGeo.MapSuite.Core.WorldMapKitLayer();  
             mapEngine.StaticLayers.Add(worldMapKitLayer);  
 
             //Adds the point volcanos shapefile displayed with icon.  
             ShapeFileFeatureLayer pointLayer = new ShapeFileFeatureLayer(@"..\..\Data\volcanos.shp");  
             pointLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.PointType = PointType.Bitmap;  
             pointLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.Image = new GeoImage(@"..\..\Data\Volcano.jpg");  
             pointLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
 
             mapEngine.StaticLayers.Add("PointLayer", pointLayer);  
 
             DrawImage();  
         }  
 
         //Logic for getting the point feature clicked on based on the dimension of the icon used.  
         private void Map_MouseDown(object sender, MouseEventArgs e)  
         {  
             //Gets the closest feature from where the user clicked on.  
             ShapeFileFeatureLayer shapeFileFeatureLayer = (ShapeFileFeatureLayer)mapEngine.StaticLayers["PointLayer"];  
             shapeFileFeatureLayer.Open();  
             PointShape clickedPointShape = ExtentHelper.ToWorldCoordinate(mapEngine.CurrentExtent, e.X, e.Y, Map.Width, Map.Height);  
             Collection<Feature> clickedFeatures = shapeFileFeatureLayer.QueryTools.GetFeaturesNearestTo(clickedPointShape, GeographyUnit.DecimalDegree, 1,  
                                                                   ReturningColumnsType.AllColumns);  
             shapeFileFeatureLayer.Close();  
 
             if (clickedFeatures.Count > 0)  
             {  
                 //Gets the dimension of the icon and checks if the clicked point is inside it.  
                 GeoImage geoImage = shapeFileFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle.Image;  
                 ScreenPointF screenPointF = ExtentHelper.ToScreenCoordinate(mapEngine.CurrentExtent, clickedFeatures[0], Map.Width, Map.Height);  
                 RectangleF rectangleF = new RectangleF(screenPointF.X - (geoImage.GetWidth() / 2), screenPointF.Y - (geoImage.GetHeight() / 2),  
                                                        geoImage.GetWidth(), geoImage.GetHeight());  
                 bool IsInside = rectangleF.Contains(new PointF(e.X, e.Y));  
 
                 //If inside, displays the info of the feature.  
                 if (IsInside == true)  
                 {  
                     string text = clickedFeatures[0].ColumnValues["NAME"].Trim();  
                     text = text + "\r\n" + "elev: " + clickedFeatures[0].ColumnValues["ELEVATION"].Trim() + " m";  
                     text = text + "\r\n" + "type: " + clickedFeatures[0].ColumnValues["TYPE"].Trim();  
                     MessageBox.Show(text, "Volcano", MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1, (MessageBoxOptions)0);  
                 }  
             }  
         }  
 
         private void DrawImage()  
         {  
             if (bitmap != null) { bitmap.Dispose(); }  
             bitmap = new Bitmap(Map.Width, Map.Height);  
             mapEngine.OpenAllLayers();  
             mapEngine.DrawStaticLayers(bitmap, GeographyUnit.DecimalDegree);  
             mapEngine.DrawDynamicLayers(bitmap, GeographyUnit.DecimalDegree);  
             mapEngine.CloseAllLayers();  
 
             Map.Image = bitmap;  
         }  
 
         private void ToolBar_ButtonClick(object sender, ToolBarButtonClickEventArgs e)  
         {  
             switch (e.Button.Tag.ToString())  
             {  
                 case "Zoom In":  
                     mapEngine.CurrentExtent.ScaleDown(50);  
                     break;  
                 case "Zoom Out":  
                     mapEngine.CurrentExtent.ScaleUp(50);  
                     break;  
                 case "Full Extent":  
                     mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-180.0, 83.0, 180.0, -90.0), Map.Width, Map.Height);  
                     break;  
                 case "Pan Left":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Left, 20);  
                     break;  
                 case "Pan Right":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Right, 20);  
                     break;  
                 case "Pan Up":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Up, 20);  
                     break;  
                 case "Pan Down":  
                     mapEngine.CurrentExtent = ExtentHelper.Pan(mapEngine.CurrentExtent, PanDirection.Down, 20);  
                     break;  
                 default:  
                     break;  
             }  
             DrawImage();  
         }  
 
         private void btnClose_Click(object sender, EventArgs e)  
         {  
             this.Close();  
         }  
 
         private void Map_MouseMove(object sender, MouseEventArgs e)  
         {  
             //Displays the X and Y in screen coordinates.  
             statusStrip1.Items["toolStripStatusLabelScreen"].Text = "X:" + e.X + " Y:" + e.Y;  
 
             //Gets the PointShape in world coordinates from screen coordinates.  
             PointShape pointShape = ExtentHelper.ToWorldCoordinate(mapEngine.CurrentExtent, new ScreenPointF(e.X, e.Y), Map.Width, Map.Height);  
 
             //Displays world coordinates.  
             statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(pointShape.X, 4) + " Y:" + Math.Round(pointShape.Y, 4);  
         }  
     }  
 }