support for .NET framework 3.5

Still have bugs

Net35/HandyControl_Net35/Shell/Standard/SC.cs

@@ -0,0 +1,32 @@
+namespace Standard
+{
+    using System;
+
+    internal enum SC
+    {
+        ARRANGE = 0xf110,
+        CLOSE = 0xf060,
+        CONTEXTHELP = 0xf180,
+        DEFAULT = 0xf160,
+        F_ISSECURE = 1,
+        HOTKEY = 0xf150,
+        HSCROLL = 0xf080,
+        ICON = 0xf020,
+        KEYMENU = 0xf100,
+        MAXIMIZE = 0xf030,
+        MINIMIZE = 0xf020,
+        MONITORPOWER = 0xf170,
+        MOUSEMENU = 0xf090,
+        MOVE = 0xf010,
+        NEXTWINDOW = 0xf040,
+        PREVWINDOW = 0xf050,
+        RESTORE = 0xf120,
+        SCREENSAVE = 0xf140,
+        SEPARATOR = 0xf00f,
+        SIZE = 0xf000,
+        TASKLIST = 0xf130,
+        VSCROLL = 0xf070,
+        ZOOM = 0xf030
+    }
+}
+