using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace OpenStreetMap
{
    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.Windows.Forms;
using System.Collections.ObjectModel;
using ThinkGeo.MapSuite.Core;
using ThinkGeo.MapSuite.DesktopEdition;
 
namespace  OpenStreetMap
{
    public partial class TestForm : Form
    {
        public TestForm()
        {
            InitializeComponent();
        }
        private void TestForm_Load(object sender, EventArgs e)
        {
            winformsMap1.MapUnit = GeographyUnit.Meter;
            winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);
            OpenStreetMapOverlay osmOvelerlay = new OpenStreetMapOverlay();
            osmOvelerlay.CacheDirectory = @"C:\temp\OpenStreetMapLayerCache1";
            winformsMap1.Overlays.Add(osmOvelerlay);
            winformsMap1.CurrentExtent = new RectangleShape(-4352400.53526627, 8867834.11959479, 10425951.3896003, -2890780.54967516);
            winformsMap1.Refresh();
        }
        private void winformsMap1_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(winformsMap1.CurrentExtent, new ScreenPointF(e.X, e.Y), winformsMap1.Width, winformsMap1.Height);
            ManagedProj4Projection proj4 = new ManagedProj4Projection();
            proj4.InternalProjectionParametersString = ManagedProj4Projection.GetGoogleMapParametersString();
            proj4.ExternalProjectionParametersString = ManagedProj4Projection.GetEpsgParametersString(4326);
            proj4.Open();
            PointShape projPointShape = (PointShape)proj4.ConvertToExternalProjection(pointShape);
            proj4.Close();
            //Displays world coordinates in decimal degrees from the OSM Mercator projection
            statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(projPointShape.X, 4) + " Y:" + Math.Round(projPointShape.Y, 4);
        }
        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}