0024699: Visualization - prototype interoperation of TKOpenGl viewer with Direct3D viewer

Add new C# sample which allow to render the OCCT scene to a Direct3D context in a WPF application.
DirectX SDK is required in order to build this sample.

samples/CSharp/WPF_D3D/About.xaml.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace IE_WPF_D3D
+{
+	/// <summary>
+	/// Interaction logic for About.xaml
+	/// </summary>
+	public partial class AboutDialog : Window
+	{
+		public AboutDialog()
+		{
+			this.InitializeComponent();
+
+            CommandBinding aBind_Ok = new CommandBinding( IECommands.AboutOk );
+            aBind_Ok.Executed += OkCommand_Executed;
+            aBind_Ok.CanExecute += OkCommand_CanExecute;
+            CommandBindings.Add( aBind_Ok );
+		}
+  
+        private void OkCommand_Executed( object sender, ExecutedRoutedEventArgs e )
+        {
+            this.Close();
+        }
+
+        private void OkCommand_CanExecute( object sender, CanExecuteRoutedEventArgs e )
+        {
+            e.CanExecute = true;
+        }
+    }
+}