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本篇內容介紹了“WPF如何實現(xiàn)窗體亞克力效果”的有關知識，在實際案例的操作過程中，不少人都會遇到這樣的困境，接下來就讓小編帶領大家學習一下如何處理這些情況吧！希望大家仔細閱讀，能夠學有所成！
WPF 窗體設置亞克力效果
框架使用大于等于.NET40。
Visual Studio 2022。
項目使用 MIT 開源許可協(xié)議。
WindowAcrylicBlur 設置亞克力顏色。
Opacity 設置透明度。
實現(xiàn)代碼
1） 準備WindowAcrylicBlur.cs如下：
using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media;
using Microsoft.Win32;
using Microsoft.Windows.Shell;
namespace WPFDevelopers.Controls
{
internal enum AccentState
{
ACCENT_DISABLED = 0,
ACCENT_ENABLE_GRADIENT = 1,
ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
ACCENT_ENABLE_BLURBEHIND = 3,
ACCENT_ENABLE_ACRYLICBLURBEHIND = 4,
ACCENT_INVALID_STATE = 5
}
[StructLayout(LayoutKind.Sequential)]
internal struct AccentPolicy
{
public AccentState AccentState;
public uint AccentFlags;
public uint GradientColor;
public uint AnimationId;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WindowCompositionAttributeData
{
public WindowCompositionAttribute Attribute;
public IntPtr Data;
public int SizeOfData;
}
internal enum WindowCompositionAttribute
{
// ...
WCA_ACCENT_POLICY = 19
// ...
}
internal class WindowOldConfig
{
public bool AllowsTransparency;
public Brush Background;
public WindowChrome WindowChrome;
public WindowStyle WindowStyle = WindowStyle.SingleBorderWindow;
}
internal class WindowOSHelper
{
public static Version GetWindowOSVersion()
{
var regKey = Registry.LocalMachine.OpenSubKey(@"Software\Microsoft\Windows NT\CurrentVersion");
int major;
int minor;
int build;
int revision;
try
{
var str = regKey.GetValue("CurrentMajorVersionNumber")?.ToString();
int.TryParse(str, out major);
str = regKey.GetValue("CurrentMinorVersionNumber")?.ToString();
int.TryParse(str, out minor);
str = regKey.GetValue("CurrentBuildNumber")?.ToString();
int.TryParse(str, out build);
str = regKey.GetValue("BaseBuildRevisionNumber")?.ToString();
int.TryParse(str, out revision);
return new Version(major, minor, build, revision);
}
catch (Exception)
{
return new Version(0, 0, 0, 0);
}
finally
{
regKey.Close();
}
}
}
public class WindowAcrylicBlur : Freezable
{
private static readonly Color _BackgtoundColor = Color.FromArgb(0x01, 0, 0, 0); //設置透明色 防止穿透
[DllImport("user32.dll")]
internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
private static bool EnableAcrylicBlur(Window window, Color color, double opacity, bool enable)
{
if (window == null)
return false;
AccentState accentState;
var vOsVersion = WindowOSHelper.GetWindowOSVersion();
if (vOsVersion > new Version(10, 0, 17763)) //1809
accentState = enable ? AccentState.ACCENT_ENABLE_ACRYLICBLURBEHIND : AccentState.ACCENT_DISABLED;
else if (vOsVersion > new Version(10, 0))
accentState = enable ? AccentState.ACCENT_ENABLE_BLURBEHIND : AccentState.ACCENT_DISABLED;
else
accentState = AccentState.ACCENT_DISABLED;
if (opacity > 1)
opacity = 1;
var windowHelper = new WindowInteropHelper(window);
var accent = new AccentPolicy();
var opacityIn = (uint) (255 * opacity);
accent.AccentState = accentState;
if (enable)
{
var blurColor = (uint) ((color.R << 0) | (color.G << 8) | (color.B << 16) | (color.A << 24));
var blurColorIn = blurColor;
if (opacityIn > 0)
blurColorIn = (opacityIn << 24) | (blurColor & 0xFFFFFF);
else if (opacityIn == 0 && color.A == 0)
blurColorIn = (0x01 << 24) | (blurColor & 0xFFFFFF);
if (accent.GradientColor == blurColorIn)
return true;
accent.GradientColor = blurColorIn;
}
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);
return true;
}
private static void Window_Initialized(object sender, EventArgs e)
{
if (!(sender is Window window))
return;
var config = new WindowOldConfig
{
WindowStyle = window.WindowStyle,
AllowsTransparency = window.AllowsTransparency,
Background = window.Background
};
var vWindowChrome = WindowChrome.GetWindowChrome(window);
if (vWindowChrome == null)
{
window.WindowStyle = WindowStyle.None; //一定要將窗口的背景色改為透明才行
window.AllowsTransparency = true; //一定要將窗口的背景色改為透明才行
window.Background = new SolidColorBrush(_BackgtoundColor); //一定要將窗口的背景色改為透明才行
}
else
{
config.WindowChrome = new WindowChrome
{
GlassFrameThickness = vWindowChrome.GlassFrameThickness
};
window.Background = Brushes.Transparent; //一定要將窗口的背景色改為透明才行
var vGlassFrameThickness = vWindowChrome.GlassFrameThickness;
vWindowChrome.GlassFrameThickness = new Thickness(0, vGlassFrameThickness.Top, 0, 0);
}
SetWindowOldConfig(window, config);
window.Initialized -= Window_Initialized;
}
private static void Window_Loaded(object sender, RoutedEventArgs e)
{
if (!(sender is Window window))
return;
var vBlur = GetWindowAcrylicBlur(window);
if (vBlur != null)
EnableAcrylicBlur(window, vBlur.BlurColor, vBlur.Opacity, true);
window.Loaded -= Window_Loaded;
}
protected override Freezable CreateInstanceCore()
{
throw new NotImplementedException();
}
protected override void OnChanged()
{
base.OnChanged();
}
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)
{
base.OnPropertyChanged(e);
}
#region 開啟Win11風格
public static WindowAcrylicBlur GetWindowAcrylicBlur(DependencyObject obj)
{
return (WindowAcrylicBlur) obj.GetValue(WindowAcrylicBlurProperty);
}
public static void SetWindowAcrylicBlur(DependencyObject obj, WindowAcrylicBlur value)
{
obj.SetValue(WindowAcrylicBlurProperty, value);
}
public static readonly DependencyProperty WindowAcrylicBlurProperty =
DependencyProperty.RegisterAttached("WindowAcrylicBlur", typeof(WindowAcrylicBlur),
typeof(WindowAcrylicBlur),
new PropertyMetadata(default(WindowAcrylicBlur), OnWindowAcryBlurPropertyChangedCallBack));
private static void OnWindowAcryBlurPropertyChangedCallBack(DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
if (!(d is Window window))
return;
if (e.OldValue == null && e.NewValue == null)
return;
if (e.OldValue == null && e.NewValue != null)
{
window.Initialized += Window_Initialized;
window.Loaded += Window_Loaded;
}
if (e.OldValue != null && e.NewValue == null)
{
var vConfig = GetWindowOldConfig(d);
if (vConfig != null)
{
window.WindowStyle = vConfig.WindowStyle;
window.AllowsTransparency = vConfig.AllowsTransparency;
window.Background = vConfig.Background;
if (vConfig.WindowChrome != null)
{
var vWindowChrome = WindowChrome.GetWindowChrome(window);
if (vWindowChrome != null)
vWindowChrome.GlassFrameThickness = vConfig.WindowChrome.GlassFrameThickness;
}
}
}
if (e.OldValue == e.NewValue)
{
if (!window.IsLoaded)
return;
var vBlur = e.NewValue as WindowAcrylicBlur;
if (vBlur == null)
return;
EnableAcrylicBlur(window, vBlur.BlurColor, vBlur.Opacity, true);
}
}
#endregion
#region 內部設置
private static WindowOldConfig GetWindowOldConfig(DependencyObject obj)
{
return (WindowOldConfig) obj.GetValue(WindowOldConfigProperty);
}
private static void SetWindowOldConfig(DependencyObject obj, WindowOldConfig value)
{
obj.SetValue(WindowOldConfigProperty, value);
}
// Using a DependencyProperty as the backing store for WindowOldConfig. This enables animation, styling, binding, etc...
private static readonly DependencyProperty WindowOldConfigProperty =
DependencyProperty.RegisterAttached("WindowOldConfig", typeof(WindowOldConfig), typeof(WindowAcrylicBlur),
new PropertyMetadata(default(WindowOldConfig)));
#endregion
#region
public Color BlurColor
{
get => (Color) GetValue(BlurColorProperty);
set => SetValue(BlurColorProperty, value);
}
// Using a DependencyProperty as the backing store for BlurColor. This enables animation, styling, binding, etc...
public static readonly DependencyProperty BlurColorProperty =
DependencyProperty.Register("BlurColor", typeof(Color), typeof(WindowAcrylicBlur),
new PropertyMetadata(default(Color)));
public double Opacity
{
get => (double) GetValue(OpacityProperty);
set => SetValue(OpacityProperty, value);
}
// Using a DependencyProperty as the backing store for Opacity. This enables animation, styling, binding, etc...
public static readonly DependencyProperty OpacityProperty =
DependencyProperty.Register("Opacity", typeof(double), typeof(WindowAcrylicBlur),
new PropertyMetadata(default(double)));
#endregion
}
}2） 使用AcrylicBlurWindowExample.xaml如下：
<Window x:Class="WPFDevelopers.Samples.ExampleViews.AcrylicBlurWindowExample"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WPFDevelopers.Samples.ExampleViews"
xmlns:wpfdev="https://github.com/WPFDevelopersOrg/WPFDevelopers"
mc:Ignorable="d" WindowStartupLocation="CenterScreen"
ResizeMode="CanMinimize"
Title="Login" Height="350" Width="400">
<wpfdev:WindowChrome.WindowChrome>
<wpfdev:WindowChrome GlassFrameThickness="0 1 0 0"/>
</wpfdev:WindowChrome.WindowChrome>
<wpfdev:WindowAcrylicBlur.WindowAcrylicBlur>
<wpfdev:WindowAcrylicBlur BlurColor="AliceBlue" Opacity="0.2"/>
</wpfdev:WindowAcrylicBlur.WindowAcrylicBlur>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="40"/>
<RowDefinition/>
</Grid.RowDefinitions>
<StackPanel HorizontalAlignment="Right"
Orientation="Horizontal"
Grid.Column="1"
wpfdev:WindowChrome.IsHitTestVisibleInChrome="True">
<Button Style="{DynamicResource WindowButtonStyle}"
Command="{Binding CloseCommand,RelativeSource={RelativeSource AncestorType=local:AcrylicBlurWindowExample}}" Cursor="Hand">
<Path Width="10" Height="10"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Data="{DynamicResource PathMetroWindowClose}"
Fill="Red"
Stretch="Fill" />
</Button>
</StackPanel>
<StackPanel Grid.Row="1" Margin="40,0,40,0"
wpfdev:WindowChrome.IsHitTestVisibleInChrome="True">
<Image Source="/WPFDevelopers.ico" Width="80" Height="80"/>
<TextBox wpfdev:ElementHelper.IsWatermark="True" wpfdev:ElementHelper.Watermark="賬戶" Margin="0,20,0,0" Cursor="Hand"/>
<PasswordBox wpfdev:ElementHelper.IsWatermark="True" wpfdev:ElementHelper.Watermark="密碼" Margin="0,20,0,0" Cursor="Hand"/>
<Button x:Name="LoginButton"
Content="登 錄"
Margin="0,20,0,0"
Style="{StaticResource PrimaryButton}"/>
<Grid Margin="0 20 0 0">
<TextBlock FontSize="12">
<Hyperlink Foreground="Black" TextDecorations="None">忘記密碼</Hyperlink>
</TextBlock>
<TextBlock FontSize="12" HorizontalAlignment="Right" Margin="0 0 -1 0">
<Hyperlink Foreground="#4370F5" TextDecorations="None">注冊賬號</Hyperlink>
</TextBlock>
</Grid>
</StackPanel>
</Grid>
</Window>3） 使用AcrylicBlurWindowExample.xaml.cs如下：
using System.Windows;
using System.Windows.Input;
using WPFDevelopers.Samples.Helpers;
namespace WPFDevelopers.Samples.ExampleViews
{
/// <summary>
/// AcrylicBlurWindowExample.xaml 的交互邏輯
/// </summary>
public partial class AcrylicBlurWindowExample : Window
{
public AcrylicBlurWindowExample()
{
InitializeComponent();
}
public ICommand CloseCommand => new RelayCommand(obj =>
{
Close();
});
}
}實現(xiàn)效果
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