Add project files.

RHLauncher.Helper/FormUtils.cs

@@ -0,0 +1,20 @@
+using System.Runtime.InteropServices;
+
+namespace RHLauncher.Helper
+{
+    public class FormUtils
+    {
+        public const int WM_NCLBUTTONDOWN = 0xA1;
+        public const int HTCAPTION = 0x2;
+        [DllImport("User32.dll")]
+        private static extern bool ReleaseCapture();
+        [DllImport("User32.dll")]
+        private static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
+
+        public static void MoveForm(IntPtr handle)
+        {
+            ReleaseCapture();
+            SendMessage(handle, WM_NCLBUTTONDOWN, HTCAPTION, 0);
+        }
+    }
+}