upgraded growl

src/Shared/HandyControl_Shared/Controls/Growl/GrowlWindow.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Interop;
+using HandyControl.Tools.Interop;
+
+namespace HandyControl.Controls
+{
+    [TemplatePart(Name = ElementGrowPanel, Type = typeof(Panel))]
+    internal class GrowlWindow : Window
+    {
+        private const string ElementGrowPanel = "PART_GrowPanel";
+
+        public Panel GrowlPanel { get; set; }
+
+        public GrowlWindow()
+        {
+            WindowStyle = WindowStyle.None;
+            AllowsTransparency = true;
+        }
+
+        public override void OnApplyTemplate()
+        {
+            base.OnApplyTemplate();
+
+            GrowlPanel = GetTemplateChild(ElementGrowPanel) as Panel;
+        }
+
+        protected override void OnSourceInitialized(EventArgs e)
+        {
+            base.OnSourceInitialized(e);
+
+            var _ = new WindowInteropHelper(this)
+            {
+                Owner = NativeMethods.GetDesktopWindow()
+            };
+        }
+
+        public void Init()
+        {
+            var desktopWorkingArea = SystemParameters.WorkArea;
+            Height = desktopWorkingArea.Height;
+            Left = desktopWorkingArea.Right - Width;
+            Top = 0;
+        }
+    }
+}