Improve/mica

src/Net_40/HandyControl_Net_40/Themes/Styles/Window.xaml

@@ -189,7 +189,7 @@
                         <MultiTrigger>
                             <MultiTrigger.Conditions>
                                 <Condition Property="WindowStyle" Value="None"/>
-                                <Condition Property="ApplyBackdropMaterial" Value="False" />
+                                <Condition Property="SystemBackdropType" Value="Disable" />
                             </MultiTrigger.Conditions>
                             <Setter Property="ShowNonClientArea" Value="False"/>
                         </MultiTrigger>

src/Net_40/HandyControl_Net_40/Themes/Theme.xaml

@@ -4781,7 +4781,7 @@
 						<MultiTrigger>
 							<MultiTrigger.Conditions>
 								<Condition Property="WindowStyle" Value="None" />
-								<Condition Property="ApplyBackdropMaterial" Value="False" />
+								<Condition Property="SystemBackdropType" Value="Disable" />
 							</MultiTrigger.Conditions>
 							<Setter Property="ShowNonClientArea" Value="False" />
 						</MultiTrigger>

src/Shared/HandyControl_Shared/Controls/Attach/WindowAttach.cs

@@ -8,7 +8,7 @@
 
 namespace HandyControl.Controls;
 
-public static class WindowAttach
+public static partial class WindowAttach
 {
     public static readonly DependencyProperty IsDragElementProperty = DependencyProperty.RegisterAttached(
         "IsDragElement", typeof(bool), typeof(WindowAttach), new PropertyMetadata(ValueBoxes.FalseBox, OnIsDragElementChanged));

src/Shared/HandyControl_Shared/Controls/Window/BlurWindow.cs

@@ -48,7 +48,7 @@ public override void OnApplyTemplate()
         EnableBlur(this, true);
     }
 
-    private static void EnableBlur(Window window, bool isEnabled)
+    public static void EnableBlur(Window window, bool isEnabled)
     {
         var version = OSVersionHelper.GetOSVersion();
         var versionInfo = new SystemVersionInfo(version.Major, version.Minor, version.Build);
@@ -90,7 +90,7 @@ private static void EnableBlur(Window window, bool isEnabled)
             Data = accentPtr
         };
 
-        InteropMethods.Gdip.SetWindowCompositionAttribute(window.GetHandle(), ref data);
+        InteropMethods.SetWindowCompositionAttribute(window.GetHandle(), ref data);
 
         Marshal.FreeHGlobal(accentPtr);
     }

src/Shared/HandyControl_Shared/HandyControl_Shared.projitems

@@ -91,6 +91,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\Attach\ListBoxAttach.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\Attach\MenuAttach.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\Attach\TreeViewAttach.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)HandyControls\Attach\WindowAttach.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\BindToEnum\EnumBindingSourceExtension.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\BindToEnum\EnumDescriptionTypeConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)HandyControls\BindToEnum\LocalizedDescriptionAttribute.cs" />

src/Shared/HandyControl_Shared/HandyControls/Attach/WindowAttach.cs

@@ -0,0 +1,36 @@
+using System.Windows;
+using HandyControl.Tools;
+namespace HandyControl.Controls
+{
+    public static partial class WindowAttach
+    {
+        #region SystemBackdropType
+
+        public static readonly DependencyProperty SystemBackdropTypeProperty =
+            DependencyProperty.RegisterAttached(
+                "SystemBackdropType",
+                typeof(BackdropType),
+                typeof(WindowAttach),
+                new PropertyMetadata(BackdropType.Auto, OnSystemBackdropTypeChanged));
+
+        public static BackdropType GetSystemBackdropType(System.Windows.Window window)
+        {
+            return (BackdropType) window.GetValue(SystemBackdropTypeProperty);
+        }
+
+        public static void SetSystemBackdropType(System.Windows.Window window, BackdropType value)
+        {
+            window.SetValue(SystemBackdropTypeProperty, value);
+        }
+
+        private static void OnSystemBackdropTypeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            if (d is System.Windows.Window window)
+            {
+                window.Apply((BackdropType) e.NewValue);
+            }
+        }
+
+        #endregion
+    }
+}

src/Shared/HandyControl_Shared/HandyControls/Controls/Window!.cs

@@ -3,11 +3,6 @@
 using System.Windows.Media;
 using HandyControl.Data;
 using HandyControl.Tools;
-#if NET40
-using Microsoft.Windows.Shell;
-#else
-using System.Windows.Shell;
-#endif
 namespace HandyControl.Controls;
 
 public partial class Window
@@ -24,53 +19,29 @@ public bool ExtendViewIntoNonClientArea
 
     #region Mica
 
-    public static readonly DependencyProperty ApplyBackdropMaterialProperty = DependencyProperty.Register(
-        "ApplyBackdropMaterial", typeof(bool), typeof(Window),
-        new PropertyMetadata(ValueBoxes.FalseBox, OnApplyBackdropMaterialChanged));
+    public static readonly DependencyProperty SystemBackdropTypeProperty = DependencyProperty.Register(
+        "SystemBackdropType", typeof(BackdropType), typeof(Window),
+        new PropertyMetadata(BackdropType.Auto, OnSystemBackdropTypeChanged));
 
-    public bool ApplyBackdropMaterial
+    public BackdropType SystemBackdropType
     {
-        get => (bool) GetValue(ApplyBackdropMaterialProperty);
-        set => SetValue(ApplyBackdropMaterialProperty, ValueBoxes.BooleanBox(value));
+        get => (BackdropType) GetValue(SystemBackdropTypeProperty);
+        set => SetValue(SystemBackdropTypeProperty, (BackdropType) value);
     }
 
-    private static void OnApplyBackdropMaterialChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    private static void OnSystemBackdropTypeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
     {
         var ctl = (Window) d;
-        ctl.InitMica();
+        ctl.InitMica((Window) d, (BackdropType) e.NewValue);
     }
 
-    private void InitMica()
+    private void InitMica(Window window, BackdropType backdropType)
     {
-        if (ApplyBackdropMaterial && OSVersionHelper.IsWindows11_OrGreater)
-        {
-#if NET40
-            var chrome = new WindowChrome
-            {
-                CornerRadius = new CornerRadius(),
-                GlassFrameThickness = new Thickness(-1),
-                ResizeBorderThickness = new Thickness(8)
-            };
-#else
-            var chrome = new WindowChrome
-            {
-                CornerRadius = new CornerRadius(),
-                ResizeBorderThickness = new Thickness(8),
-                GlassFrameThickness = new Thickness(-1),
-                NonClientFrameEdges = NonClientFrameEdges.None,
-                UseAeroCaptionButtons = false
-            };
-#endif
-            WindowChrome.SetWindowChrome(this, chrome);
-            NonClientAreaBackground = Brushes.Transparent;
-            MicaHelper.ApplyMicaEffect(this);
-        }
-        else
-        {
-            MicaHelper.RemoveMicaEffect();
-        }
+        NonClientAreaBackground = Brushes.Transparent;
+        Background = Brushes.Transparent;
+        window.Apply(backdropType);
     }
-    
+
     #endregion
 
     #region Show/Hide NonClientArea Buttons

src/Shared/HandyControl_Shared/HandyControls/ThemeManager/ThemeManager.cs

@@ -145,7 +145,7 @@ private void SystemEvents_UserPreferenceChanged(object sender, UserPreferenceCha
                             _currenTheme = changedTheme;
                             _currentAccent = changedAccent;
 
-                            if (UsingSystemTheme || MicaHelper.IsMicaEffectApplied)
+                            if (UsingSystemTheme)
                             {
                                 ApplicationTheme = changedTheme;
                                 AccentColor = changedAccent;