12

通过在 XAML 中设置以下窗口属性,我创建了一个无边框 WPF 窗口:

... WindowStyle="None" AllowsTransparency="True" ...

这会导致许多问题:

1) 已解决:它不再具有任何内置的调整大小功能

2)已解决:它不再具有任何内置的拖动功能

3)解决:没有顶部工具栏,它不再有最小化/最大化/恢复/关闭按钮

4) 已解决:通过 aero snap 最大化或设置 WindowState 可防止其取消捕捉。

5)通过aero snap 最大化或设置WindowState 将使用整个屏幕作为边界,与windows 工具栏重叠。

6)通过 aero snap 最大化或设置 WindowState 似乎包括 -7 边距,使窗口在超出窗口边缘的每侧有 7 个像素。

通过制作 xaml 窗口模板解决了 1-3 问题。我使用不可见的矩形作为句柄区域,并通过覆盖 OnApplyTemplate() 应用其背后的一些代码,以通过 user32.dll SendMessage(...) 附加功能以调整大小/移动/最小化/最大化/恢复/关闭。

我在这里找到了#4的答案

我尝试通过 WndProc 拦截最大化消息并手动设置大小/位置来解决 5-6,但这存在将 RestoreRegion 覆盖为最大化大小/位置的问题,从而消除了恢复窗口的能力。

真正奇怪的是,将窗口大小从顶部边框调整到屏幕顶部可以很好地触发航空全高捕捉,完全没有问题。

所以,我已经走了很长一段路,但 5-6 仍然是一个问题......有没有办法手动指定最大化区域?或者,有没有办法在不影响 restoreregion 属性的情况下设置窗口大小?

4

6 回答 6

14

最简单的完整解决方案

您好,以下解决方案以最简单的方式解决了您问题中详述的所有问题,并且可以在使用 WPF 和最新版本的 C# 语言和 .NET 框架的 Windows 10 上运行。这是截至 2017 年 3 月 15 日。如果它停止工作,请告诉我。

第 1 步:要解决问题 1、2 和 4,请<Window ... > </Window>在应用程序 XAML 的标记中,将其粘贴到顶部或底部:

<WindowChrome.WindowChrome>
    <WindowChrome CaptionHeight="35"/>
<WindowChrome.WindowChrome>

CaptionHeight是您的窗口拖动区域的所需高度。

第 2 步:要解决问题 3,您需要创建标题栏和标题以及窗口控件。为此,您只需为每个所需的标题栏元素提供一个顶部的 VerticalAlignment,或者将它们放入一个将 VerticalAlignment 设置为顶部的网格中,这将为所有这些元素执行此操作,但请确保它们的高度不是大于第 1 步中在 XAML 中声明CaptionHeight的元素的属性WindowChrome。对于所有按钮,您必须为它们或它们的容器分配属性WindowChrome.IsHitTestVisibleInChrome="True"。这是一个例子:

<Grid VerticalAlignment="Top" Background="White" Name="TitleBar" Height="35">
    <Label Content="Borderless Window Test" VerticalAlignment="Center" HorizontalAlignment="Left"/>
    <StackPanel WindowChrome.IsHitTestVisibleInChrome="True" VerticalAlignment="Center" HorizontalAlignment="Right" Orientation="Horizontal" Name="WindowControls">
        <Button Height="35" Width="35" Content="-" Padding="0" Name="MinimizeButton"/>
        <Button Height="35" Width="35" Content="+" Padding="0" Name="MaximizeButton"/>
        <Button Height="35" Width="35" Content="x" Padding="0" Name="CloseButton"/>
    </StackPanel>
</Grid>

现在,要向窗口控制按钮添加适当的功能,请在MainWindow()代码隐藏的构造函数中,即应用程序的 C# 源代码中,调用后将以下内容粘贴到InitializeComponent();

CloseButton.Click += (s, e) => Close();
MaximizeButton.Click += (s, e) => WindowState = WindowState == WindowState.Normal ? WindowState.Maximized : WindowState.Normal;
MinimizeButton.Click += (s, e) => WindowState = WindowState.Minimized;

第 3 步:要解决问题 5 和 6,您需要连接到 WmGetMinMaxInfo。为此,请转到您的代码隐藏,然后将此Pastebin中的所有内容复制并粘贴到您的 Window 类中。现在,在您的MainWindow()构造函数中,粘贴:

SourceInitialized += (s, e) =>
{
    IntPtr handle = (new WindowInteropHelper(this)).Handle;
    HwndSource.FromHwnd(handle).AddHook(new HwndSourceHook(WindowProc));
};

通过Project > Add References在文件菜单中,请务必参考:

System.Management
System.Windows.Interop
System.Security.Principal
System.Runtime.InteropServices
Microsoft.Win32

最好的检查方法是单击Assemblies左上角的选项卡,然后选择Framework,然后使用窗口右上角的搜索框。现在将所有这些使用(命名空间)添加到代码隐藏的顶部:

using System.Management;
using System.Windows.Interop;
using System.Security.Principal;
using System.Runtime.InteropServices;
using Microsoft.Win32;

那应该涵盖所有内容。我希望这有帮助!

于 2017-03-15T10:19:57.320 回答
5

我自己刚刚经历了这整个事情。这是一件真正的苦差事,因为您必须手动考虑这么多。有趣的是,这些天我们把很多事情都视为理所当然,就像基本窗口的操作一样简单。但是看看我提供的这个示例代码可以很好地表明这个问题到底有多少。

我希望这会有所帮助,因为我自己花了一点时间才到这里。

主窗口.Xaml

<Window x:Class="WpfApp1.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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:WpfApp1"
    Background="Transparent"
    WindowStartupLocation="CenterScreen"
    ResizeMode="CanResizeWithGrip"
    AllowsTransparency="True"
    WindowStyle="None"
    mc:Ignorable="d"
    Title="Test Window Behavior" Height="768" Width="1024" StateChanged="Window_StateChanged" PreviewMouseLeftButtonDown="Window_PreviewMouseLeftButtonDown">

<Grid>
    <DockPanel Grid.Column="1" Grid.Row="1">
        <DockPanel x:Name="titleBar" Background="White" DockPanel.Dock="Top">
            <Rectangle Width="32" Height="32" DockPanel.Dock="Left" Fill="Red" Margin="2"/>
            <StackPanel Orientation="Horizontal" DockPanel.Dock="Right" Margin="2">

                <!-- Minimize Button -->
                <Border Width="24" Height="24" Margin="2" HorizontalAlignment="Right" MouseLeftButtonUp="OnMinimizeWindow" Grid.Column="2">
                    <Border.Style>
                        <Style TargetType="Border">
                            <Setter Property="Background" Value="Transparent" />
                            <Style.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter Property="Background" Value="#FFD0D0D0" />
                                </Trigger>
                            </Style.Triggers>
                        </Style>
                    </Border.Style>
                    <TextBlock FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" Text="0" FontFamily="Webdings" />
                </Border>

                <!-- Maximize Button -->
                <Border Width="24" Height="24" Margin="2" HorizontalAlignment="Right" MouseLeftButtonUp="OnMaximizeWindow" Grid.Column="3">
                    <Border.Style>
                        <Style TargetType="Border">
                            <Setter Property="Background" Value="Transparent" />
                            <Style.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter Property="Background" Value="#FFD0D0D0" />
                                </Trigger>
                            </Style.Triggers>
                        </Style>
                    </Border.Style>
                    <TextBlock x:Name="IsMaximized" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" FontFamily="Webdings">
                        <TextBlock.Style>
                            <Style TargetType="TextBlock">
                                <Setter Property="Text" Value="1" />
                                <Style.Triggers>
                                    <DataTrigger Binding="{Binding Path=InternalWindowState, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}" Value="Maximized">
                                        <Setter Property="Text" Value="2" />
                                    </DataTrigger>
                                </Style.Triggers>
                            </Style>
                        </TextBlock.Style>
                    </TextBlock>
                </Border>

                <!-- Close Button -->
                <Border Width="24" Height="24" Margin="2" HorizontalAlignment="Right" MouseLeftButtonUp="OnCloseWindow" Grid.Column="4">
                    <Border.Style>
                        <Style TargetType="Border">
                            <Setter Property="Background" Value="Transparent" />
                            <Style.Triggers>
                                <Trigger Property="IsMouseOver" Value="True">
                                    <Setter Property="Background" Value="Red" />
                                </Trigger>
                            </Style.Triggers>
                        </Style>
                    </Border.Style>
                    <TextBlock FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" Text="r" FontFamily="Webdings" />
                </Border>
            </StackPanel>

            <Label MouseLeftButtonDown="OnDragMoveWindow" MouseDoubleClick="OnMaximizeWindow" Margin="8 0 0 0" FontSize="12" VerticalContentAlignment="Center" Content="{Binding Path=Title, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}, FallbackValue='Main Window'}" />
        </DockPanel>

        <Grid Background="White" DockPanel.Dock="Bottom" Height="32">
            <Label VerticalContentAlignment="Center" Content="Statusbar Text Goes Here ..." />
        </Grid>

        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="100" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="100" />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="100" />
                <RowDefinition Height="*" />
                <RowDefinition Height="100" />
            </Grid.RowDefinitions>

            <!-- Top 3 -->
            <Border Background="Gray" Grid.Row="0" Grid.Column="0" />
            <Border Background="Gray" Grid.Row="0" Grid.Column="1" BorderBrush="Black" BorderThickness="0 0 0 1" />
            <Border Background="Gray" Grid.Row="0" Grid.Column="2" />

            <!-- Middle 2 -->
            <Border Background="Gray" Grid.Row="1" Grid.Column="0" BorderBrush="Black" BorderThickness="0 0 1 0" />
            <Border Background="Gray" Grid.Row="1" Grid.Column="2" BorderBrush="Black" BorderThickness="1 0 0 0" />

            <!-- Bottom 3 -->
            <Border Background="Gray" Grid.Row="2" Grid.Column="0" />
            <Border Background="Gray" Grid.Row="2" Grid.Column="1" BorderBrush="Black" BorderThickness="0 1 0 0" />
            <Border Background="Gray" Grid.Row="2" Grid.Column="2" />
        </Grid>
    </DockPanel>
    <Grid>
        <Grid.Resources>
            <Style TargetType="Thumb">
                <Style.Setters>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate>
                                <Border Background="Transparent" />
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style.Setters>
            </Style>
        </Grid.Resources>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="25" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="25" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="25" />
            <RowDefinition Height="*" />
            <RowDefinition Height="25" />
        </Grid.RowDefinitions>

        <!-- Top/Left -->
        <DockPanel LastChildFill="False" Grid.Row="0" Grid.Column="0">
            <Thumb DockPanel.Dock="Left" Width="4" Cursor="SizeNWSE" Tag="0" DragDelta="Thumb_DragDelta" />
            <Thumb DockPanel.Dock="Top" Height="4" Cursor="SizeNWSE" Tag="0" DragDelta="Thumb_DragDelta" />
        </DockPanel>

        <!-- Top/Right -->
        <DockPanel LastChildFill="False" Grid.Row="0" Grid.Column="2">
            <Thumb DockPanel.Dock="Right" Width="4" Cursor="SizeNESW" Tag="0" DragDelta="Thumb_DragDelta" />
            <Thumb DockPanel.Dock="Top" Height="4" Cursor="SizeNESW" Tag="0" DragDelta="Thumb_DragDelta" />
        </DockPanel>

        <!-- Bottom/Left -->
        <DockPanel LastChildFill="False" Grid.Row="2" Grid.Column="0">
            <Thumb DockPanel.Dock="Left" Width="4" Cursor="SizeNESW" Tag="1" DragDelta="Thumb_DragDelta" />
            <Thumb DockPanel.Dock="Bottom" Height="4" Cursor="SizeNESW" Tag="1" DragDelta="Thumb_DragDelta" />
        </DockPanel>

        <!-- Bottom/Right -->
        <DockPanel LastChildFill="False" Grid.Row="2" Grid.Column="2">
            <Thumb DockPanel.Dock="Right" Width="4" Cursor="SizeNWSE" Tag="1" DragDelta="Thumb_DragDelta" />
            <Thumb DockPanel.Dock="Bottom" Height="4" Cursor="SizeNWSE" Tag="1" DragDelta="Thumb_DragDelta" />
        </DockPanel>

        <!-- Left -->
        <Thumb Grid.Row="1" Grid.Column="0" Width="4" Cursor="SizeWE" Tag="0" HorizontalAlignment="Left" DragDelta="Thumb_DragDelta" />

        <!-- Top -->
        <Thumb Grid.Row="0" Grid.Column="1" Height="4" Cursor="SizeNS" Tag="0" VerticalAlignment="Top" DragDelta="Thumb_DragDelta" />

        <!-- Right -->
        <Thumb Grid.Row="1" Grid.Column="2" Width="4" Cursor="SizeWE" Tag="1" HorizontalAlignment="Right" DragDelta="Thumb_DragDelta" />

        <!-- Bottom -->
        <Thumb Grid.Row="2" Grid.Column="1" Height="4" Cursor="SizeNS" Tag="1" VerticalAlignment="Bottom" DragDelta="Thumb_DragDelta" />
    </Grid>
</Grid>

主窗口.xaml.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApp1
{
    public partial class MainWindow : Window
    {
        #region --- Declarations ---
        private Rect _location { get; set; }
        #endregion

        #region --- Constructors ---
        public MainWindow()
        {
            InitializeComponent();
        }
        #endregion

        #region --- Properties ---
        private Rect DesktopArea
        {
            get
            {
                var c = System.Windows.Forms.Cursor.Position;
                var s = System.Windows.Forms.Screen.FromPoint(c);
                var a = s.WorkingArea;
                return new Rect(a.Left, a.Top, a.Width, a.Height);
            }
        }
        #endregion

        #region --- Dependency Properties ---
        public static readonly DependencyProperty InternalWindowStateProperty = DependencyProperty.Register("InternalWindowState", typeof(WindowState), typeof(MainWindow), new PropertyMetadata(WindowState.Normal, new PropertyChangedCallback(OnInternalWindowStateChanged)));

        public WindowState InternalWindowState
        {
            get { return (WindowState)GetValue(InternalWindowStateProperty); }
            set { SetValue(InternalWindowStateProperty, value); }
        }

        private static void OnInternalWindowStateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            MainWindow instance = (MainWindow)d;
            instance.SetInternalWindowState((WindowState)e.NewValue);
        }
        #endregion

        #region --- Private Methods ---
        private void StoreLocation()
        {
            _location = new Rect(this.Left, this.Top, this.Width, this.Height);
        }

        private void RestoreLocation()
        {
            this.Width = _location.Width;
            this.Height = _location.Height;
            this.Top = _location.Top >= 0 ? _location.Top : 0;
            this.Left = _location.Left;
        }

        private void SetMaximizedState()
        {
            this.Width = DesktopArea.Width;
            this.Height = DesktopArea.Height;
            this.Top = DesktopArea.Top;
            this.Left = DesktopArea.Left;
        }

        private void SetInternalWindowState(WindowState state)
        {
            InternalWindowState = state;

            switch (InternalWindowState)
            {
                case WindowState.Normal:
                    this.WindowState = WindowState.Normal;
                    RestoreLocation();
                    break;
                case WindowState.Maximized:
                    this.WindowState = WindowState.Normal;
                    SetMaximizedState();
                    break;
                case WindowState.Minimized:
                    this.WindowState = WindowState.Minimized;
                    break;
            }
        }
        #endregion

        #region --- Sizing Routines --- 
        private void Thumb_DragDelta(object sender, System.Windows.Controls.Primitives.DragDeltaEventArgs e)
        {
            Thumb thumb = (Thumb)sender;
            int tag = Convert.ToInt32(thumb.Tag);
            if (thumb.Cursor == Cursors.SizeWE) HandleSizeWE(tag, e);
            if (thumb.Cursor == Cursors.SizeNS) HandleSizeNS(tag, e);
            if (thumb.Cursor == Cursors.SizeNESW) HandleSizeNESW(tag, e);
            if (thumb.Cursor == Cursors.SizeNWSE) HandleSizeNWSE(tag, e);
        }

        private void HandleSizeNWSE(int tag, DragDeltaEventArgs e)
        {
            if (tag == 0)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
            }
            else
            {
                this.Width += e.HorizontalChange;
                this.Height += e.VerticalChange;
            }
        }

        private void HandleSizeNESW(int tag, DragDeltaEventArgs e)
        {
            if (tag == 0)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
                this.Width += e.HorizontalChange;
            }
            else
            {
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
                this.Height += e.VerticalChange;
            }
        }

        private void HandleSizeNS(int tag, DragDeltaEventArgs e)
        {
            if (tag == 0)
            {
                this.Top += e.VerticalChange;
                this.Height -= e.VerticalChange;
            }
            else
                this.Height += e.VerticalChange;
        }

        private void HandleSizeWE(int tag, DragDeltaEventArgs e)
        {
            if (tag == 0)
            {
                this.Left += e.HorizontalChange;
                this.Width -= e.HorizontalChange;
            }
            else
                this.Width += e.HorizontalChange;
        }
        #endregion

        #region --- Event Handlers ---
        private void OnDragMoveWindow(Object sender, MouseButtonEventArgs e)
        {
            if (this.InternalWindowState == WindowState.Maximized)
            {
                var c = System.Windows.Forms.Cursor.Position;
                this.InternalWindowState = WindowState.Normal;
                this.Height = _location.Height;
                this.Width = _location.Width;
                this.Top = c.Y - (titleBar.ActualHeight / 2);
                this.Left = c.X - (_location.Width / 2);
            }
            this.DragMove();
        }

        private void OnMaximizeWindow(Object sender, MouseButtonEventArgs e)
        {
            if (this.InternalWindowState == WindowState.Maximized)
                this.InternalWindowState = WindowState.Normal;
            else
                this.InternalWindowState = WindowState.Maximized;
        }

        private void OnMinimizeWindow(Object sender, MouseButtonEventArgs e)
        {
            this.InternalWindowState = WindowState.Minimized;
        }

        private void OnCloseWindow(Object sender, MouseButtonEventArgs e)
        {
            Application.Current.Shutdown();
        }

        private void Window_StateChanged(object sender, EventArgs e)
        {
            if (this.WindowState == WindowState.Maximized)
            {
                this.InternalWindowState = WindowState.Maximized;
            }
        }

        private void Window_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (this.InternalWindowState != WindowState.Maximized)
                StoreLocation();
        }
        #endregion
    }
}
于 2018-02-05T15:33:26.540 回答
3

对于第 5 点,请使用:

public WindowName() // Constructor for your window
{
this.MaxHeight = SystemParameters.WorkArea.Height;
this.MaxWidth = SystemParameters.WorkArea.Width;
}

这将确保窗口在最大化时不会与任务栏重叠。

于 2015-07-25T19:34:09.227 回答
2

WM_GETMINMAXINFO您可以通过处理Win32 消息来指定最大化区域。这里的代码显示了如何做到这一点。它将解决问题#5 和#6。

请注意,我会做一些不同的事情,例如IntPtr.Zero在 WindowProc 中返回而不是 (System.IntPtr)0 并制作MONITOR_DEFAULTTONEAREST一个常量。但这只是编码风格的改变,并不影响最终结果。

还要确保注意在事件WindowProc期间挂钩的更新SourceInitialized而不是OnApplyTemplate. 那是最好的地方。如果您正在实现从 Window 派生的类,那么另一个选项是覆盖OnSourceInitialized以挂钩WindowProc而不是附加到事件。这就是我通常所做的。

于 2013-06-08T02:45:07.517 回答
1

对于所有这些问题,我只能推荐这个:

MahApps.Metro:http ://mahapps.com/MahApps.Metro/

源代码:https ://github.com/MahApps/MahApps.Metro

这是一个很好的图书馆,主题很好,易于使用!

希望有帮助

于 2012-11-16T19:08:29.777 回答
0

我知道这是一个迟到的回应,但几年前我正在处理这些确切的问题,尤其是#6。

对于 #6,如果您将 ResizeState 设置为 CanResize 或 CanResizeWithGrip、CanMinimize 和 NoResize 全屏且没有过扫描,则会出现问题。我所做的是我创建了自己的标题栏,具有最小化、最大化、关闭和 DragMove(具有取消捕捉支持)功能,并且我创建了一个拇指作为调整大小的手柄以允许调整大小。

这仍然有一些缺点,例如只能从右下角调整大小并且必须处理#5。我还没有找到一个优雅的解决方案。

于 2019-02-14T13:23:56.373 回答