Mouse hover simulation, and ability to not restart UWP apps when connecting.

src/WinAppDriver/Handlers/NewSessionHandler.cs

@@ -156,7 +156,11 @@ public object Handle(Dictionary<string, string> urlParams, string body, ref ISes
                 }
             }
 
+            if (caps.ResetStrategy != ResetStrategy.SkipActivate)
+            {
             app.Activate();
+            }
+
             session = this.sessionManager.CreateSession(app, caps);
 
             // TODO turn off IME, release all modifier keys

src/WinAppDriver/ResetStrategy.cs

@@ -14,6 +14,9 @@ internal enum ResetStrategy
         Full,
 
         [EnumMember(Value = "noReset")]
-        No
+        No,
+
+        [EnumMember(Value = "skipActivate")]
+        SkipActivate
     }
 }

src/WinAppDriver/UI/Mouse.cs

@@ -10,6 +10,8 @@
 
     internal class Mouse : IMouse
     {
+        private const int NormalizedMaximum = 0xFFFF;
+
         private static ILogger logger = Logger.GetLogger("WinAppDriver");
 
         private IWinUserWrap winUser;
@@ -21,8 +23,42 @@ public Mouse(IWinUserWrap winUser)
 
         public Point Position
         {
-            get { return System.Windows.Forms.Cursor.Position; }
-            private set { System.Windows.Forms.Cursor.Position = value; }
+            get
+            {
+                return System.Windows.Forms.Cursor.Position;
+            }
+
+            private set
+            {
+                Point normalizedXY = this.NormalizeCoordinates(value.X, value.Y);
+
+                INPUT input = new INPUT
+                {
+                    type = (int)INPUTTYPE.MOUSE,
+                    u = new InputUnion
+                    {
+                        mi = new MOUSEINPUT
+                        {
+                            dx = normalizedXY.X,
+                            dy = normalizedXY.Y,
+                            mouseData = 0,
+                            dwFlags = (uint)(MOUSEEVENTF.MOVE | MOUSEEVENTF.ABSOLUTE | MOUSEEVENTF.VIRTUALDESK),
+                            time = 0,
+                            dwExtraInfo = new IntPtr(0),
+                        }
+                    }
+                };
+                this.winUser.SendInput(1, new INPUT[] { input }, Marshal.SizeOf(typeof(INPUT)));
+            }
+        }
+
+        public Point NormalizeCoordinates(int x, int y)
+        {
+            var width = System.Windows.Forms.SystemInformation.VirtualScreen.Width;
+            var height = System.Windows.Forms.SystemInformation.VirtualScreen.Height;
+            int normalizedX = (NormalizedMaximum * x) / width;
+            int normalizedY = (NormalizedMaximum * y) / height;
+            return new Point(normalizedX, normalizedY);
         }
 
         public void Click(MouseButton button)

src/WinAppDriver/Wrappers/WinUserWrapper/IWinUserWrap.cs

@@ -84,6 +84,7 @@ internal enum MOUSEEVENTF : uint
         MIDDLEDOWN = 0x0020,
         MIDDLEUP = 0x0040,
         ABSOLUTE = 0x8000,
+        VIRTUALDESK = 0x4000
     }
 
     [SuppressMessage("StyleCop.CSharp.NamingRules", "SA1305:FieldNamesMustNotUseHungarianNotation", Justification = "Reviewed.")]