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关于c＃：如何在WPF中将AppBar停靠到屏幕边缘，例如WinAmp？

2023-04-16 03:24:00

How do you do AppBar docking (to screen edge, like WinAmp) in WPF?

在WPF中进行AppBar停靠(例如锁定到屏幕边缘)是否有任何完整指南？我知道需要进行InterOp调用，但是我正在寻找基于简单WPF表单的概念证明或可以使用的组件化版本。

相关资源：

http://www.codeproject.com/KB/dotnet/AppBar.aspx
http://social.msdn.microsoft.com/Forums/zh-CN/wpf/thread/05c73c9c-e85d-4ecd-b9b6-4c714a65e72b/

请注意：这个问题收集了很多反馈，下面的一些人提出了要点或修正。因此，尽管我将代码保存在这里(并可能进行更新)，但我还在github上创建了一个WpfAppBar项目。随时发送请求请求。

该项目还构建到WpfAppBar nuget包中

我从问题中提供的第一个链接中获取了代码(http://www.codeproject.com/KB/dotnet/AppBar.aspx)，并对其进行了修改以完成两件事：

使用WPF

是"独立的"-如果将此单个文件放入项目中，则可以调用AppBarFunctions.SetAppBar(...)，而无需对窗口进行任何进一步的修改。

这种方法不会创建基类。

使用时，只需在普通的wpf窗口中的任何位置调用此代码即可(例如单击按钮或初始化)。请注意，只有在初始化窗口之后才能调用此函数，如果尚未创建HWND(如在构造函数中)，则会发生错误。

将窗口设为应用栏：

1	AppBarFunctions.SetAppBar( this, ABEdge.Right );

将窗口还原为普通窗口：

1	AppBarFunctions.SetAppBar( this, ABEdge.None );

这是文件的完整代码-请注意，您需要将第7行的名称空间更改为适当的名称。

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从1996年开始，有一篇出色的MSDN文章令人愉悦地更新了：使用应用程序桌面工具栏扩展Windows 95 Shell。按照其指导，将产生一个基于WPF的应用栏，该应用栏可以处理许多此页面上其他答案没有的方案：

允许停靠在屏幕的任何一侧
允许停靠到特定显示器
允许调整应用栏的大小(如果需要)
处理屏幕布局更改并监视断开连接
处理Win + Shift + Left并尝试最小化或移动窗口
处理与其他应用程序栏的合作(OneNote等)
处理每个显示器的DPI缩放

我既有演示应用程序，又有GitHub上AppBarWindow的实现。

使用示例：

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<apb:AppBarWindow x:Class="WpfAppBarDemo.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:apb="clr-namespace:WpfAppBar;assembly=WpfAppBar"
DataContext="{Binding RelativeSource={RelativeSource Self}}" Title="MainWindow"
DockedWidthOrHeight="200" MinHeight="100" MinWidth="100">
<Grid>
<Button x:Name="btClose" Content="Close" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Height="23" Margin="10,10,0,0" Click="btClose_Click"/>
<ComboBox x:Name="cbMonitor" SelectedItem="{Binding Path=Monitor, Mode=TwoWay}" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" Margin="10,38,0,0"/>
<ComboBox x:Name="cbEdge" SelectedItem="{Binding Path=DockMode, Mode=TwoWay}" HorizontalAlignment="Left" Margin="10,65,0,0" VerticalAlignment="Top" Width="120"/>

<Thumb Width="5" HorizontalAlignment="Right" Background="Gray" x:Name="rzThumb" Cursor="SizeWE" DragCompleted="rzThumb_DragCompleted" />
</Grid>
</apb:AppBarWindow>

代码背后：

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public partial class MainWindow
{
public MainWindow()
{
InitializeComponent();

this.cbEdge.ItemsSource = new[]
{
AppBarDockMode.Left,
AppBarDockMode.Right,
AppBarDockMode.Top,
AppBarDockMode.Bottom
};
this.cbMonitor.ItemsSource = MonitorInfo.GetAllMonitors();
}

private void btClose_Click(object sender, RoutedEventArgs e)
{
Close();
}

private void rzThumb_DragCompleted(object sender, DragCompletedEventArgs e)
{
this.DockedWidthOrHeight += (int)(e.HorizontalChange / VisualTreeHelper.GetDpi(this).PixelsPerDip);
}
}

更改停靠位置：

用拇指调整大小：

与其他应用栏的合作：

如果要使用它，请从GitHub克隆。该库本身只有三个文件，可以很容易地放入一个项目中。

我修改了Philip Rieck的代码(顺便说一句，非常感谢)以在多种显示设置中工作。这是我的解决方案。

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Threading;

namespace AppBarApplication
{
public enum ABEdge : int
{
Left = 0,
Top,
Right,
Bottom,
None
}

internal static class AppBarFunctions
{
[StructLayout(LayoutKind.Sequential)]
private struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}

[StructLayout(LayoutKind.Sequential)]
private struct APPBARDATA
{
public int cbSize;
public IntPtr hWnd;
public int uCallbackMessage;
public int uEdge;
public RECT rc;
public IntPtr lParam;
}

[StructLayout(LayoutKind.Sequential)]
private struct MONITORINFO
{
public int cbSize;
public RECT rcMonitor;
public RECT rcWork;
public int dwFlags;
}

private enum ABMsg : int
{
ABM_NEW = 0,
ABM_REMOVE,
ABM_QUERYPOS,
ABM_SETPOS,
ABM_GETSTATE,
ABM_GETTASKBARPOS,
ABM_ACTIVATE,
ABM_GETAUTOHIDEBAR,
ABM_SETAUTOHIDEBAR,
ABM_WINDOWPOSCHANGED,
ABM_SETSTATE
}
private enum ABNotify : int
{
ABN_STATECHANGE = 0,
ABN_POSCHANGED,
ABN_FULLSCREENAPP,
ABN_WINDOWARRANGE
}

[DllImport("SHELL32", CallingConvention = CallingConvention.StdCall)]
private static extern uint SHAppBarMessage(int dwMessage, ref APPBARDATA pData);

[DllImport("User32.dll", CharSet = CharSet.Auto)]
private static extern int RegisterWindowMessage(string msg);

[DllImport("User32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr MonitorFromWindow(IntPtr hwnd, uint dwFlags);

[DllImport("User32.dll", CharSet = CharSet.Auto)]
private static extern bool GetMonitorInfo(IntPtr hMonitor, ref MONITORINFO mi);

private const int MONITOR_DEFAULTTONEAREST = 0x2;
private const int MONITORINFOF_PRIMARY = 0x1;

private class RegisterInfo
{
public int CallbackId { get; set; }
public bool IsRegistered { get; set; }
public Window Window { get; set; }
public ABEdge Edge { get; set; }
public WindowStyle OriginalStyle { get; set; }
public Point OriginalPosition { get; set; }
public Size OriginalSize { get; set; }
public ResizeMode OriginalResizeMode { get; set; }

public IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam,
IntPtr lParam, ref bool handled)
{
if (msg == CallbackId)
{
if (wParam.ToInt32() == (int)ABNotify.ABN_POSCHANGED)
{
ABSetPos(Edge, Window);
handled = true;
}
}
return IntPtr.Zero;
}

}
private static Dictionary<Window, RegisterInfo> s_RegisteredWindowInfo
= new Dictionary<Window, RegisterInfo>();
private static RegisterInfo GetRegisterInfo(Window appbarWindow)
{
RegisterInfo reg;
if (s_RegisteredWindowInfo.ContainsKey(appbarWindow))
{
reg = s_RegisteredWindowInfo[appbarWindow];
}
else
{
reg = new RegisterInfo()
{
CallbackId = 0,
Window = appbarWindow,
IsRegistered = false,
Edge = ABEdge.Top,
OriginalStyle = appbarWindow.WindowStyle,
OriginalPosition = new Point(appbarWindow.Left, appbarWindow.Top),
OriginalSize =
new Size(appbarWindow.ActualWidth, appbarWindow.ActualHeight),
OriginalResizeMode = appbarWindow.ResizeMode,
};
s_RegisteredWindowInfo.Add(appbarWindow, reg);
}
return reg;
}

private static void RestoreWindow(Window appbarWindow)
{
RegisterInfo info = GetRegisterInfo(appbarWindow);

appbarWindow.WindowStyle = info.OriginalStyle;
appbarWindow.ResizeMode = info.OriginalResizeMode;
appbarWindow.Topmost = false;

Rect rect = new Rect(info.OriginalPosition.X, info.OriginalPosition.Y,
info.OriginalSize.Width, info.OriginalSize.Height);
appbarWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), appbarWindow, rect);

}

public static void SetAppBar(Window appbarWindow, ABEdge edge)
{
RegisterInfo info = GetRegisterInfo(appbarWindow);

info.Edge = edge;

APPBARDATA abd = new APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = new WindowInteropHelper(appbarWindow).Handle;

if (edge == ABEdge.None)
{
if (info.IsRegistered)
{
SHAppBarMessage((int)ABMsg.ABM_REMOVE, ref abd);
info.IsRegistered = false;
}
RestoreWindow(appbarWindow);
return;
}

if (!info.IsRegistered)
{
info.IsRegistered = true;
info.CallbackId = RegisterWindowMessage("AppBarMessage");
abd.uCallbackMessage = info.CallbackId;

uint ret = SHAppBarMessage((int)ABMsg.ABM_NEW, ref abd);

HwndSource source = HwndSource.FromHwnd(abd.hWnd);
source.AddHook(new HwndSourceHook(info.WndProc));
}

appbarWindow.WindowStyle = WindowStyle.None;
appbarWindow.ResizeMode = ResizeMode.NoResize;
appbarWindow.Topmost = true;

ABSetPos(info.Edge, appbarWindow);
}

private delegate void ResizeDelegate(Window appbarWindow, Rect rect);
private static void DoResize(Window appbarWindow, Rect rect)
{
appbarWindow.Width = rect.Width;
appbarWindow.Height = rect.Height;
appbarWindow.Top = rect.Top;
appbarWindow.Left = rect.Left;
}

private static void GetActualScreenData(ABEdge edge, Window appbarWindow, ref int leftOffset, ref int topOffset, ref int actualScreenWidth, ref int actualScreenHeight)
{
IntPtr handle = new WindowInteropHelper(appbarWindow).Handle;
IntPtr monitorHandle = MonitorFromWindow(handle, MONITOR_DEFAULTTONEAREST);

MONITORINFO mi = new MONITORINFO();
mi.cbSize = Marshal.SizeOf(mi);

if (GetMonitorInfo(monitorHandle, ref mi))
{
if (mi.dwFlags == MONITORINFOF_PRIMARY)
{
return;
}
leftOffset = mi.rcWork.left;
topOffset = mi.rcWork.top;
actualScreenWidth = mi.rcWork.right - leftOffset;
actualScreenHeight = mi.rcWork.bottom - mi.rcWork.top;
}
}

private static void ABSetPos(ABEdge edge, Window appbarWindow)
{
APPBARDATA barData = new APPBARDATA();
barData.cbSize = Marshal.SizeOf(barData);
barData.hWnd = new WindowInteropHelper(appbarWindow).Handle;
barData.uEdge = (int)edge;

int leftOffset = 0;
int topOffset = 0;
int actualScreenWidth = (int)SystemParameters.PrimaryScreenWidth;
int actualScreenHeight = (int)SystemParameters.PrimaryScreenHeight;

GetActualScreenData(edge, appbarWindow, ref leftOffset, ref topOffset, ref actualScreenWidth, ref actualScreenHeight);

if (barData.uEdge == (int)ABEdge.Left || barData.uEdge == (int)ABEdge.Right)
{
barData.rc.top = topOffset;
barData.rc.bottom = actualScreenHeight;
if (barData.uEdge == (int)ABEdge.Left)
{
barData.rc.left = leftOffset;
barData.rc.right = (int)Math.Round(appbarWindow.ActualWidth) + leftOffset;
}
else
{
barData.rc.right = actualScreenWidth + leftOffset;
barData.rc.left = barData.rc.right - (int)Math.Round(appbarWindow.ActualWidth);
}
}
else
{
barData.rc.left = leftOffset;
barData.rc.right = actualScreenWidth + leftOffset;
if (barData.uEdge == (int)ABEdge.Top)
{
barData.rc.top = topOffset;
barData.rc.bottom = (int)Math.Round(appbarWindow.ActualHeight) + topOffset;
}
else
{
barData.rc.bottom = actualScreenHeight + topOffset;
barData.rc.top = barData.rc.bottom - (int)Math.Round(appbarWindow.ActualHeight);
}
}

SHAppBarMessage((int)ABMsg.ABM_QUERYPOS, ref barData);
SHAppBarMessage((int)ABMsg.ABM_SETPOS, ref barData);

Rect rect = new Rect((double)barData.rc.left, (double)barData.rc.top,
(double)(barData.rc.right - barData.rc.left), (double)(barData.rc.bottom - barData.rc.top));
//This is done async, because WPF will send a resize after a new appbar is added.
//if we size right away, WPFs resize comes last and overrides us.
appbarWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), appbarWindow, rect);
}
}
}

对不起，我的英语...这是菲利普·里克(Philip Rieck)的正确解决方案。它可以正确使用任务栏的位置和大小更改。

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Threading;

namespace wpf_appbar
{
public enum ABEdge : int
{
Left,
Top,
Right,
Bottom,
None
}

internal static class AppBarFunctions
{
[StructLayout(LayoutKind.Sequential)]
private struct RECT
{
public int Left;
public int Top;
public int Right;
public int Bottom;
public RECT(Rect r)
{
Left = (int)r.Left;
Right = (int)r.Right;
Top = (int)r.Top;
Bottom = (int)r.Bottom;
}
public static bool operator ==(RECT r1, RECT r2)
{
return r1.Bottom == r2.Bottom && r1.Left == r2.Left && r1.Right == r2.Right && r1.Top == r2.Top;
}
public static bool operator !=(RECT r1, RECT r2)
{
return !(r1 == r2);
}
public override bool Equals(object obj)
{
return base.Equals(obj);
}
public override int GetHashCode()
{
return base.GetHashCode();
}
}

[StructLayout(LayoutKind.Sequential)]
private struct APPBARDATA
{
public int cbSize;
public IntPtr hWnd;
public int uCallbackMessage;
public int uEdge;
public RECT rc;
public IntPtr lParam;
}

private enum ABMsg : int
{
ABM_NEW = 0,
ABM_REMOVE,
ABM_QUERYPOS,
ABM_SETPOS,
ABM_GETSTATE,
ABM_GETTASKBARPOS,
ABM_ACTIVATE,
ABM_GETAUTOHIDEBAR,
ABM_SETAUTOHIDEBAR,
ABM_WINDOWPOSCHANGED,
ABM_SETSTATE
}
private enum ABNotify : int
{
ABN_STATECHANGE = 0,
ABN_POSCHANGED,
ABN_FULLSCREENAPP,
ABN_WINDOWARRANGE
}

private enum TaskBarPosition : int
{
Left,
Top,
Right,
Bottom
}

[StructLayout(LayoutKind.Sequential)]
class TaskBar
{
public TaskBarPosition Position;
public TaskBarPosition PreviousPosition;
public RECT Rectangle;
public RECT PreviousRectangle;
public int Width;
public int PreviousWidth;
public int Height;
public int PreviousHeight;
public TaskBar()
{
Refresh();
}
public void Refresh()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
SHAppBarMessage((int)ABMsg.ABM_GETTASKBARPOS, ref msgData);
PreviousPosition = Position;
PreviousRectangle = Rectangle;
PreviousHeight = Height;
PreviousWidth = Width;
Rectangle = msgData.rc;
Width = Rectangle.Right - Rectangle.Left;
Height = Rectangle.Bottom - Rectangle.Top;
int h = (int)SystemParameters.PrimaryScreenHeight;
int w = (int)SystemParameters.PrimaryScreenWidth;
if (Rectangle.Bottom == h && Rectangle.Top != 0) Position = TaskBarPosition.Bottom;
else if (Rectangle.Top == 0 && Rectangle.Bottom != h) Position = TaskBarPosition.Top;
else if (Rectangle.Right == w && Rectangle.Left != 0) Position = TaskBarPosition.Right;
else if (Rectangle.Left == 0 && Rectangle.Right != w) Position = TaskBarPosition.Left;
}
}

[DllImport("SHELL32", CallingConvention = CallingConvention.StdCall)]
private static extern uint SHAppBarMessage(int dwMessage, ref APPBARDATA pData);

[DllImport("User32.dll", CharSet = CharSet.Auto)]
private static extern int RegisterWindowMessage(string msg);

private class RegisterInfo
{
public int CallbackId { get; set; }
public bool IsRegistered { get; set; }
public Window Window { get; set; }
public ABEdge Edge { get; set; }
public ABEdge PreviousEdge { get; set; }
public WindowStyle OriginalStyle { get; set; }
public Point OriginalPosition { get; set; }
public Size OriginalSize { get; set; }
public ResizeMode OriginalResizeMode { get; set; }

public IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam,
IntPtr lParam, ref bool handled)
{
if (msg == CallbackId)
{
if (wParam.ToInt32() == (int)ABNotify.ABN_POSCHANGED)
{
PreviousEdge = Edge;
ABSetPos(Edge, PreviousEdge, Window);
handled = true;
}
}
return IntPtr.Zero;
}

}
private static Dictionary<Window, RegisterInfo> s_RegisteredWindowInfo
= new Dictionary<Window, RegisterInfo>();
private static RegisterInfo GetRegisterInfo(Window appbarWindow)
{
RegisterInfo reg;
if (s_RegisteredWindowInfo.ContainsKey(appbarWindow))
{
reg = s_RegisteredWindowInfo[appbarWindow];
}
else
{
reg = new RegisterInfo()
{
CallbackId = 0,
Window = appbarWindow,
IsRegistered = false,
Edge = ABEdge.None,
PreviousEdge = ABEdge.None,
OriginalStyle = appbarWindow.WindowStyle,
OriginalPosition = new Point(appbarWindow.Left, appbarWindow.Top),
OriginalSize =
new Size(appbarWindow.ActualWidth, appbarWindow.ActualHeight),
OriginalResizeMode = appbarWindow.ResizeMode,
};
s_RegisteredWindowInfo.Add(appbarWindow, reg);
}
return reg;
}

private static void RestoreWindow(Window appbarWindow)
{
RegisterInfo info = GetRegisterInfo(appbarWindow);

appbarWindow.WindowStyle = info.OriginalStyle;
appbarWindow.ResizeMode = info.OriginalResizeMode;
appbarWindow.Topmost = false;

Rect rect = new Rect(info.OriginalPosition.X, info.OriginalPosition.Y,
info.OriginalSize.Width, info.OriginalSize.Height);
appbarWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), appbarWindow, rect);

}

public static void SetAppBar(Window appbarWindow, ABEdge edge)
{
RegisterInfo info = GetRegisterInfo(appbarWindow);
info.Edge = edge;

APPBARDATA abd = new APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = new WindowInteropHelper(appbarWindow).Handle;

if (edge == ABEdge.None)
{
if (info.IsRegistered)
{
SHAppBarMessage((int)ABMsg.ABM_REMOVE, ref abd);
info.IsRegistered = false;
}
RestoreWindow(appbarWindow);
info.PreviousEdge = info.Edge;
return;
}

if (!info.IsRegistered)
{
info.IsRegistered = true;
info.CallbackId = RegisterWindowMessage("AppBarMessage");
abd.uCallbackMessage = info.CallbackId;

uint ret = SHAppBarMessage((int)ABMsg.ABM_NEW, ref abd);

HwndSource source = HwndSource.FromHwnd(abd.hWnd);
source.AddHook(new HwndSourceHook(info.WndProc));
}

appbarWindow.WindowStyle = WindowStyle.None;
appbarWindow.ResizeMode = ResizeMode.NoResize;
appbarWindow.Topmost = true;

ABSetPos(info.Edge, info.PreviousEdge, appbarWindow);
}

private delegate void ResizeDelegate(Window appbarWindow, Rect rect);
private static void DoResize(Window appbarWindow, Rect rect)
{
appbarWindow.Width = rect.Width;
appbarWindow.Height = rect.Height;
appbarWindow.Top = rect.Top;
appbarWindow.Left = rect.Left;
}

static TaskBar tb = new TaskBar();

private static void ABSetPos(ABEdge edge, ABEdge prevEdge, Window appbarWindow)
{
APPBARDATA barData = new APPBARDATA();
barData.cbSize = Marshal.SizeOf(barData);
barData.hWnd = new WindowInteropHelper(appbarWindow).Handle;
barData.uEdge = (int)edge;
RECT wa = new RECT(SystemParameters.WorkArea);
tb.Refresh();
switch (edge)
{
case ABEdge.Top:
barData.rc.Left = wa.Left - (prevEdge == ABEdge.Left ? (int)Math.Round(appbarWindow.ActualWidth) : 0);
barData.rc.Right = wa.Right + (prevEdge == ABEdge.Right ? (int)Math.Round(appbarWindow.ActualWidth) : 0);
barData.rc.Top = wa.Top - (prevEdge == ABEdge.Top ? (int)Math.Round(appbarWindow.ActualHeight) : 0) - ((tb.Position != TaskBarPosition.Top && tb.PreviousPosition == TaskBarPosition.Top) ? tb.Height : 0) + ((tb.Position == TaskBarPosition.Top && tb.PreviousPosition != TaskBarPosition.Top) ? tb.Height : 0);
barData.rc.Bottom = barData.rc.Top + (int)Math.Round(appbarWindow.ActualHeight);
break;
case ABEdge.Bottom:
barData.rc.Left = wa.Left - (prevEdge == ABEdge.Left ? (int)Math.Round(appbarWindow.ActualWidth) : 0);
barData.rc.Right = wa.Right + (prevEdge == ABEdge.Right ? (int)Math.Round(appbarWindow.ActualWidth) : 0);
barData.rc.Bottom = wa.Bottom + (prevEdge == ABEdge.Bottom ? (int)Math.Round(appbarWindow.ActualHeight) : 0) - 1 + ((tb.Position != TaskBarPosition.Bottom && tb.PreviousPosition == TaskBarPosition.Bottom) ? tb.Height : 0) - ((tb.Position == TaskBarPosition.Bottom && tb.PreviousPosition != TaskBarPosition.Bottom) ? tb.Height : 0);
barData.rc.Top = barData.rc.Bottom - (int)Math.Round(appbarWindow.ActualHeight);
break;
}

SHAppBarMessage((int)ABMsg.ABM_QUERYPOS, ref barData);
switch (barData.uEdge)
{
case (int)ABEdge.Bottom:
if (tb.Position == TaskBarPosition.Bottom && tb.PreviousPosition == tb.Position)
{
barData.rc.Top += (tb.PreviousHeight - tb.Height);
barData.rc.Bottom = barData.rc.Top + (int)appbarWindow.ActualHeight;
}
break;
case (int)ABEdge.Top:
if (tb.Position == TaskBarPosition.Top && tb.PreviousPosition == tb.Position)
{
if (tb.PreviousHeight - tb.Height > 0) barData.rc.Top -= (tb.PreviousHeight - tb.Height);
barData.rc.Bottom = barData.rc.Top + (int)appbarWindow.ActualHeight;
}
break;
}
SHAppBarMessage((int)ABMsg.ABM_SETPOS, ref barData);

Rect rect = new Rect((double)barData.rc.Left, (double)barData.rc.Top, (double)(barData.rc.Right - barData.rc.Left), (double)(barData.rc.Bottom - barData.rc.Top));
appbarWindow.Dispatcher.BeginInvoke(new ResizeDelegate(DoResize), DispatcherPriority.ApplicationIdle, appbarWindow, rect);
}
}
}

您可以为左边缘和右边缘编写相同的代码。
干得好，菲利普·里克，谢谢！

很高兴找到这个问题。上面的类确实有用，但是并没有涵盖AppBar实现的所有基础。

为了完全实现AppBar的所有行为(应对全屏应用程序等)，您也将要阅读此MSDN文章。

http://msdn.microsoft.com/en-us/library/bb776821.aspx

我花了数周的时间研究这个挑战，最后创建了一个非常可靠的NuGet软件包，以非常友好的方式提供了此功能。只需创建一个新的WPF应用程序，然后将主窗口的类从Window更改为DockWindow(在XAML中)就可以了！

在此处获取软件包，并查看Git仓库以获取演示应用程序。

作为一种商业替代方案，请参阅WPF的即用型ShellAppBar组件，该组件支持所有情况和场景，例如停靠在左侧，右侧，顶部，底部边缘的任务栏，支持多个监视器，拖放，自动隐藏等。尝试自己处理所有这些案件可能会节省您的时间和金钱。

免责声明：我为LogicNP Software(ShellAppBar的开发人员)工作。

抱歉，调整任务栏大小时，我发布的最后一个代码不起作用。以下代码更改似乎更好地起作用：

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SHAppBarMessage((int)ABMsg.ABM_QUERYPOS, ref barData);

if (barData.uEdge == (int)ABEdge.Top)
barData.rc.bottom = barData.rc.top + (int)Math.Round(appbarWindow.ActualHeight);
else if (barData.uEdge == (int)ABEdge.Bottom)
barData.rc.top = barData.rc.bottom - (int)Math.Round(appbarWindow.ActualHeight);

SHAppBarMessage((int)ABMsg.ABM_SETPOS, ref barData);