optimized performance

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

@@ -61,7 +61,7 @@ namespace HandyControl.Controls
         public bool ShowImage
         {
             get => (bool)GetValue(ShowImageProperty);
-            set => SetValue(ShowImageProperty, value);
+            set => SetValue(ShowImageProperty, ValueBoxes.BooleanBox(value));
         }
 
         private MessageBox()

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

@@ -109,7 +109,7 @@ namespace HandyControl.Controls
         public bool ShowTitle
         {
             get => (bool) GetValue(ShowTitleProperty);
-            set => SetValue(ShowTitleProperty, value);
+            set => SetValue(ShowTitleProperty, ValueBoxes.BooleanBox(value));
         }
 
         public static readonly DependencyProperty ShowCancelProperty = DependencyProperty.Register(
@@ -118,7 +118,7 @@ namespace HandyControl.Controls
         public bool ShowCancel
         {
             get => (bool)GetValue(ShowCancelProperty);
-            set => SetValue(ShowCancelProperty, value);
+            set => SetValue(ShowCancelProperty, ValueBoxes.BooleanBox(value));
         }
 
         public static readonly DependencyProperty ShowBorderProperty = DependencyProperty.Register(
@@ -127,7 +127,7 @@ namespace HandyControl.Controls
         public bool ShowBorder
         {
             get => (bool) GetValue(ShowBorderProperty);
-            set => SetValue(ShowBorderProperty, value);
+            set => SetValue(ShowBorderProperty, ValueBoxes.BooleanBox(value));
         }
 
         private void TitleBlock_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)

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

@@ -208,7 +208,7 @@ namespace HandyControl.Controls
         public bool IsFullScreen
         {
             get => (bool)GetValue(IsFullScreenProperty);
-            set => SetValue(IsFullScreenProperty, value);
+            set => SetValue(IsFullScreenProperty, ValueBoxes.BooleanBox(value));
         }
 
         public object NonClientAreaContent
@@ -256,13 +256,13 @@ namespace HandyControl.Controls
         public bool ShowNonClientArea
         {
             get => (bool)GetValue(ShowNonClientAreaProperty);
-            set => SetValue(ShowNonClientAreaProperty, value);
+            set => SetValue(ShowNonClientAreaProperty, ValueBoxes.BooleanBox(value));
         }
 
         public bool ShowTitle
         {
             get => (bool)GetValue(ShowTitleProperty);
-            set => SetValue(ShowTitleProperty, value);
+            set => SetValue(ShowTitleProperty, ValueBoxes.BooleanBox(value));
         }
 
         private static void OnShowNonClientAreaChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)