Parasitemia/WPF/BitmapSourceConverter.cs

   1 //----------------------------------------------------------------------------
   2 //  Copyright (C) 2004-2015 by EMGU Corporation. All rights reserved.
   3 //----------------------------------------------------------------------------
   4
   5 using System;
   6 using System.Runtime.InteropServices;
   7 using System.Windows;
   8 using System.Windows.Media;
   9 using System.Windows.Media.Imaging;
  10 using System.Windows.Shapes;
  11 using Emgu.CV;
  12
  13 namespace Emgu.CV.WPF
  14 {
  15    public static class BitmapSourceConvert
  16    {
  17       /// <summary>
  18       /// Delete a GDI object
  19       /// </summary>
  20       /// <param name="o">The poniter to the GDI object to be deleted</param>
  21       /// <returns></returns>
  22       [DllImport("gdi32")]
  23       private static extern int DeleteObject(IntPtr o);
  24
  25       /// <summary>
  26       /// Convert an IImage to a WPF BitmapSource. The result can be used in the Set Property of Image.Source
  27       /// </summary>
  28       /// <param name="image">The Emgu CV Image</param>
  29       /// <returns>The equivalent BitmapSource</returns>
  30       public static BitmapSource ToBitmapSource(IImage image)
  31       {
  32          using (System.Drawing.Bitmap source = image.Bitmap)
  33          {
  34             IntPtr ptr = source.GetHbitmap(); //obtain the Hbitmap
  35
  36             BitmapSource bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
  37                 ptr,
  38                 IntPtr.Zero,
  39                 Int32Rect.Empty,
  40                 System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
  41
  42             DeleteObject(ptr); //release the HBitmap
  43             return bs;
  44          }
  45       }
  46    }
  47 }