Demo.WindowsPresentation/Source/Map.cs

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namespace Demo.WindowsPresentation
{
   using System.Windows.Controls;
   using System.Windows.Media;
   using GMap.NET.WindowsPresentation;
   using System.Globalization;
   using System.Windows.Forms;
   using System.Windows;
   using System;

   /// <summary>
   /// the custom map f GMapControl 
   /// </summary>
   public class Map : GMapControl
   {
      public long ElapsedMilliseconds;

#if DEBUG
      DateTime start;
      DateTime end;
      int delta;

      private int counter;
      readonly Typeface tf = new Typeface("GenericSansSerif");
      readonly System.Windows.FlowDirection fd = new System.Windows.FlowDirection();

      /// <summary>
      /// any custom drawing here
      /// </summary>
      /// <param name="drawingContext"></param>
      protected override void OnRender(DrawingContext drawingContext)
      {
         start = DateTime.Now;

         base.OnRender(drawingContext);

         end = DateTime.Now;
         delta = (int)(end - start).TotalMilliseconds;

         FormattedText text = new FormattedText(Zoom + "z, " + MapProvider + ", refresh: " + counter++ + ", load: " + ElapsedMilliseconds + "ms, render: " + delta + "ms", CultureInfo.CurrentUICulture, fd, tf, 20, Brushes.Blue);
         drawingContext.DrawText(text, new Point(text.Height, text.Height));
         text = null;
      }
#endif
   }
}