📱 🔍 优化搜索功能/优化动画

Util/BlurGlassUtil.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Interop;
+
+namespace GeekDesk.Util
+{
+    public class BlurGlassUtil
+    {
+        internal enum AccentState
+        {
+            ACCENT_DISABLED = 1,
+            ACCENT_ENABLE_GRADIENT = 0,
+            ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
+            ACCENT_ENABLE_BLURBEHIND = 3,
+            ACCENT_INVALID_STATE = 4
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        internal struct AccentPolicy
+        {
+            public AccentState AccentState;
+            public int AccentFlags;
+            public int GradientColor;
+            public int AnimationId;
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        internal struct WindowCompositionAttributeData
+        {
+            public WindowCompositionAttribute Attribute;
+            public IntPtr Data;
+            public int SizeOfData;
+        }
+
+        internal enum WindowCompositionAttribute
+        {
+            // ...
+            WCA_ACCENT_POLICY = 19
+            // ...
+        }
+
+        [DllImport("user32.dll")]
+        internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
+
+
+        public static void EnableBlur(Window window)
+        {
+            var windowHelper = new WindowInteropHelper(window);
+
+            var accent = new AccentPolicy();
+            accent.AccentState = AccentState.ACCENT_ENABLE_BLURBEHIND;
+
+            var accentStructSize = Marshal.SizeOf(accent);
+
+            var accentPtr = Marshal.AllocHGlobal(accentStructSize);
+            Marshal.StructureToPtr(accent, accentPtr, false);
+
+            var data = new WindowCompositionAttributeData();
+            data.Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY;
+            data.SizeOfData = accentStructSize;
+            data.Data = accentPtr;
+
+            SetWindowCompositionAttribute(windowHelper.Handle, ref data);
+
+            Marshal.FreeHGlobal(accentPtr);
+        }
+    }
+}