如何使用c#在Windows10任务栏上创建工具栏工具

using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;

[DllImport("user32.dll")]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("shell32.dll")]
private static extern IntPtr SHAppBarMessage(int dwMessage, ref APPBARDATA pData);

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

[StructLayout(LayoutKind.Sequential)]
private struct RECT
{
    public int Left;
    public int Top;
    public int Right;
    public int Bottom;
}

private const int ABM_NEW = 0x00000000;
private const int ABM_REMOVE = 0x00000001;
private const int ABM_QUERYPOS = 0x00000002;
private const int ABM_SETPOS = 0x00000003;
private const int ABM_GETSTATE = 0x00000004;
private const int ABM_GETTASKBARPOS = 0x00000005;
private const int ABM_ACTIVATE = 0x00000006;
private const int ABM_GETAUTOHIDEBAR = 0x00000007;
private const int ABM_SETAUTOHIDEBAR = 0x00000008;
private const int ABM_WINDOWPOSCHANGED = 0x00000009;
private const int ABM_SETSTATE = 0x0000000A;

private const int ABS_AUTOHIDE = 0x0000001;
private const int ABS_ALWAYSONTOP = 0x0000002;

private const int WM_ACTIVATE = 0x0006;
private const int WM_WINDOWPOSCHANGED = 0x0047;

private const string ClassName = "Shell_TrayWnd";
private const string WindowName = "";

private IntPtr taskbarHandle;

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);

    taskbarHandle = FindWindow(ClassName, WindowName);

    if (taskbarHandle != IntPtr.Zero)
    {
        APPBARDATA appBarData = new APPBARDATA();
        appBarData.cbSize = Marshal.SizeOf(appBarData);
        appBarData.hWnd = taskbarHandle;
        appBarData.uCallbackMessage = WM_ACTIVATE;
        appBarData.uEdge = (uint)ABE_LEFT;
        appBarData.rc.Left = 0;
        appBarData.rc.Top = 0;
        appBarData.rc.Right = 100;
        appBarData.rc.Bottom = 30;

        SHAppBarMessage(ABM_NEW, ref appBarData);
        SHAppBarMessage(ABM_SETPOS, ref appBarData);
        SHAppBarMessage(ABM_ACTIVATE, ref appBarData);
    }
}