support for .NET framework 3.5

Still have bugs

Net35/HandyControl_Net35/Shell/Standard/RefRECT.cs

@@ -0,0 +1,97 @@
+namespace Standard
+{
+    using System;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Runtime.InteropServices;
+
+    [StructLayout(LayoutKind.Sequential), SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses")]
+    internal class RefRECT
+    {
+        private int _left;
+        private int _top;
+        private int _right;
+        private int _bottom;
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public RefRECT(int left, int top, int right, int bottom)
+        {
+            this._left = left;
+            this._top = top;
+            this._right = right;
+            this._bottom = bottom;
+        }
+
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Width
+        {
+            get
+            {
+                return (this._right - this._left);
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Height
+        {
+            get
+            {
+                return (this._bottom - this._top);
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Left
+        {
+            get
+            {
+                return this._left;
+            }
+            set
+            {
+                this._left = value;
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Right
+        {
+            get
+            {
+                return this._right;
+            }
+            set
+            {
+                this._right = value;
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Top
+        {
+            get
+            {
+                return this._top;
+            }
+            set
+            {
+                this._top = value;
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public int Bottom
+        {
+            get
+            {
+                return this._bottom;
+            }
+            set
+            {
+                this._bottom = value;
+            }
+        }
+        [SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        public void Offset(int dx, int dy)
+        {
+            this._left += dx;
+            this._top += dy;
+            this._right += dx;
+            this._bottom += dy;
+        }
+    }
+}
+