WPF NotifyIcon

--------------
Initial import

git-svn-id: https://svn.evolvesoftware.ch/repos/evolve.net/WPF/NotifyIcon@52 9f600761-6f11-4665-b6dc-0185e9171623

Source/NotifyIconWpf/Interop/WindowClass.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Hardcodet.Wpf.TaskbarNotification.Interop
+{
+  /// <summary>
+  /// Callback delegate which is used by the Windows API to
+  /// submit window messages.
+  /// </summary>
+  public delegate long WindowProcedureHandler(IntPtr hwnd, uint uMsg, uint wparam, uint lparam);
+
+
+  /// <summary>
+  /// Win API WNDCLASS struct - represents a single window.
+  /// Used to receive window messages.
+  /// </summary>
+  [StructLayout(LayoutKind.Sequential)]
+  public struct WindowClass
+  {
+    public uint style;
+    public WindowProcedureHandler lpfnWndProc;
+    public int cbClsExtra;
+    public int cbWndExtra;
+    public IntPtr hInstance;
+    public IntPtr hIcon;
+    public IntPtr hCursor;
+    public IntPtr hbrBackground;
+    [MarshalAs(UnmanagedType.LPWStr)] public string lpszMenuName;
+    [MarshalAs(UnmanagedType.LPWStr)] public string lpszClassName;
+  }
+}