cleanup code, added version to commandline interface, updated MSTest nuget packages.

Katteker.Gui/NativeMethods.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Katteker.Gui
+{
+    /// <summary>
+    /// Native methods.
+    /// </summary>
+    public static class NativeMethods
+    {
+        /// <summary>
+        /// Release the capture
+        /// </summary>
+        [DllImport("User32.dll")]
+        public static extern bool ReleaseCapture();
+
+        /// <summary>
+        /// Send message
+        /// </summary>
+        [DllImport("User32.dll")]
+        public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
+
+        /// <summary>
+        /// Set Process API aware
+        /// </summary>
+        [DllImport("user32.dll")]
+        public static extern bool SetProcessDPIAware();
+
+    }
+}