简介
Microsoft官网关于 WindowChome 的介绍
截取Microsoft文章的一段话：
若要在保留其标准功能时自定义窗口，可以使用该 WindowChrome 类。 该 WindowChrome 类将窗口框架的功能与视觉对象分开，并允许你控制应用程序窗口的客户端和非客户端区域之间的边界。 通过 WindowChrome 该类，可以通过扩展工作区来覆盖非工作区，将 WPF 内容置于窗口框架中。 同时，它通过两个不可见区域保留系统行为： 调整边框 和 标题 区域的大小。
效果图
自定义最小化、最大化、关闭按钮
最小化按钮
<Style
x:Key="SystemCloseButtonStyle"
BasedOn="{StaticResource SystemButtonStyleBase}"
TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid Background="{TemplateBinding Background}">
<Viewbox Width="12" Height="12">
<Path Data="M550.848 502.496l308.64-308.896a31.968 31.968 0 1 0-45.248-45.248l-308.608 308.896-308.64-308.928a31.968 31.968 0 1 0-45.248 45.248l308.64 308.896-308.64 308.896a31.968 31.968 0 1 0 45.248 45.248l308.64-308.896 308.608 308.896a31.968 31.968 0 1 0 45.248-45.248l-308.64-308.864z" Fill="{TemplateBinding BorderBrush}" />
</Viewbox>
<ContentPresenter
HorizontalAlignment="Center"
VerticalAlignment="Center"
Content="{TemplateBinding Content}" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource CloseColor}" />
<Setter Property="BorderBrush" Value="{StaticResource DominantColor}" />
</Trigger>
<Trigger Property="IsFocused" Value="True">
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
最大化按钮
<Style
x:Key="SystemMaxButtonStyle"
BasedOn="{StaticResource SystemButtonStyleBase}"
TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid Background="{TemplateBinding Background}">
<Viewbox Width="12" Height="12">
<Path Data="M959.72 0H294.216a63.96 63.96 0 0 0-63.96 63.96v127.92H64.28A63.96 63.96 0 0 0 0.32 255.84V959.4a63.96 63.96 0 0 0 63.96 63.96h703.56a63.96 63.96 0 0 0 63.96-63.96V792.465h127.92a63.96 63.96 0 0 0 63.96-63.96V63.96A63.96 63.96 0 0 0 959.72 0zM767.84 728.505V959.4H64.28V255.84h703.56z m189.322 0H831.8V255.84a63.96 63.96 0 0 0-63.96-63.96H294.216V63.96H959.72z" Fill="{TemplateBinding BorderBrush}" />
</Viewbox>
<ContentPresenter
HorizontalAlignment="Center"
VerticalAlignment="Center"
Content="{TemplateBinding Content}" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource SuspensionColor}" />
</Trigger>
<Trigger Property="IsFocused" Value="True">
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
关闭按钮
<Style
x:Key="SystemMinButtonStyle"
BasedOn="{StaticResource SystemButtonStyleBase}"
TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid Background="{TemplateBinding Background}">
<Viewbox Width="12" Height="10">
<Path Data="M928.2 548h-832c-17.7 0-32-14.3-32-32s14.3-32 32-32h832c17.7 0 32 14.3 32 32s-14.3 32-32 32z" Fill="{TemplateBinding BorderBrush}" />
</Viewbox>
<ContentPresenter
HorizontalAlignment="Center"
VerticalAlignment="Center"
Content="{TemplateBinding Content}" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource SuspensionColor}" />
</Trigger>
<Trigger Property="IsFocused" Value="True">
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
/// <summary>
/// 窗口移动
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Move_Click(object sender, System.Windows.Input.MouseButtonEventArgs e) => this.DragMove();
/// <summary>
/// 最小化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnMin_Click(object sender, RoutedEventArgs e) => WindowState = WindowState.Minimized;
/// <summary>
/// 最大化/还原
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnMax_Click(object sender, RoutedEventArgs e) => WindowState = WindowState is WindowState.Normal ? WindowState.Maximized : WindowState.Normal;
/// <summary>
/// 关闭
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnClose_Click(object sender, RoutedEventArgs e) => Application.Current.Shutdown();
布局实现
首先我们需要在 MainWindow 也就是我们的主窗口中的 Window.Resources 中实现 WindowChrome 的基本样式：
WindowChrome.ResizeBorderThickness 设置不可见边框宽度
WindowChrome.CaptionHeight> 设置属于标题栏的范围——高度
WindowChrome.UseAeroCaptionButtons 是否启用默认系统按钮功能——三大金刚键
WindowChrome.NonClientFrameEdges 设置客户区域，使用 bottom 可以实现加载时空白窗口而不显示默认窗口，提升用户体验
<Window
x:Class="SignalRClient.MainWindow"
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:local="clr-namespace:SignalRClient"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
Title=""
Width="880"
Height="620"
MinWidth="700"
MinHeight="500"
Style="{StaticResource mainWindow}"
WindowChrome.WindowChrome="{DynamicResource WindowChromeKey}"
WindowStartupLocation="CenterScreen"
mc:Ignorable="d">
<Window.Resources>
<WindowChrome x:Key="WindowChromeKey">
<WindowChrome.ResizeBorderThickness>
<Thickness>5</Thickness>
</WindowChrome.ResizeBorderThickness>
<WindowChrome.CaptionHeight>60</WindowChrome.CaptionHeight>
<WindowChrome.UseAeroCaptionButtons>false</WindowChrome.UseAeroCaptionButtons>
<WindowChrome.NonClientFrameEdges>bottom</WindowChrome.NonClientFrameEdges>
</WindowChrome>
</Window.Resources>
</Window>
重写窗口，实现最大化窗口下，标题栏及客户区域偏移问题的修正。
通过代码获取当前窗口的工作区域，及任务栏以外的其他区域
System.Windows.SystemParameters.WorkArea.Width 获取工作区域的宽
System.Windows.SystemParameters.WorkArea.Height 获取工作区域的高
为什么要使用 ValueConverter 主要是因为 WorkArea 返回的类型无法直接 binding xaml
<ValueConverters:WorkAreaWidth x:Key="workAreaWidth" />
<ValueConverters:WorkAreaHeight x:Key="workAreaHeight" />
<Style x:Key="mainWindow" TargetType="{x:Type Window}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Window">
<ContentControl x:Name="window" Content="{TemplateBinding Content}" />
<ControlTemplate.Triggers>
<Trigger Property="WindowState" Value="Maximized">
<Setter TargetName="window" Property="MaxHeight" Value="{Binding Converter={StaticResource workAreaHeight}}" />
<Setter TargetName="window" Property="MaxWidth" Value="{Binding Converter={StaticResource workAreaWidth}}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
using System;
using System.Globalization;
using System.Windows.Data;
namespace SignalRClient.ValueConverters
{
internal class WorkAreaWidth : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return System.Windows.SystemParameters.WorkArea.Width;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
using System;
using System.Globalization;
using System.Windows.Data;
namespace SignalRClient.ValueConverters
{
internal class WorkAreaHeight : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return System.Windows.SystemParameters.WorkArea.Height;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
结语
一开始，确实很难搞，Microsoft 的文档，里面也并没有，详细介绍窗口内容溢出的问题，但是只要仔细研究过 WPF 的同学都知道，很多东西是可以通过 Trigger 来实现的。Get 到这一点很多问题就迎刃而解了。
到此这篇关于WPF利用WindowChrome实现自定义窗口的文章就介绍到这了,更多相关WPF WindowChrome自定义窗口内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
