add ColorDropper

src/Shared/HandyControl_Shared/Data/Args/MouseHookEventArgs.cs

@@ -0,0 +1,12 @@
+using System;
+using HandyControl.Tools.Interop;
+
+namespace HandyControl.Data
+{
+    internal class MouseHookEventArgs : EventArgs
+    {
+        public MouseHookMessageType Message { get; set; }
+
+        public NativeMethods.POINT Point { get; set; }
+    }
+}