add files

src/Shared/HandyControl_Shared/Themes/Styles/Sprite.xaml

@@ -0,0 +1,22 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:controls="clr-namespace:HandyControl.Controls">
+
+    <Style TargetType="controls:Sprite">
+        <Setter Property="controls:WindowAttach.IgnoreAltF4" Value="True"/>
+        <Setter Property="controls:WindowAttach.ShowInTaskManager" Value="False"/>
+        <Setter Property="SizeToContent" Value="WidthAndHeight"/>
+        <Setter Property="ResizeMode" Value="NoResize"/>
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="ShowActivated" Value="False"/>
+        <Setter Property="ShowInTaskbar" Value="False"/>
+        <Setter Property="Topmost" Value="True"/>
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="controls:Sprite">
+                    <ContentPresenter Margin="{TemplateBinding Padding}" controls:WindowAttach.IsDragElement="True" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+</ResourceDictionary>