How to disable the Maui icon in the taskbar

[Snsaiu]

Description

I want to hide my program icons on Windows, I found some codes, they work, but a small toolbar window will appear. I don't want them to appear

this is code:

#if WINDOWS
    public static void HideTaskBar(Microsoft.UI.Xaml.Window window)
    {
        var hWnd = WindowNative.GetWindowHandle(window);
        var exStyle = (int)GetWindowLong(hWnd, (int)GetWindowLongFields.GWL_EXSTYLE);

        exStyle &= ~(int)ExtendedWindowStyles.WS_EX_APPWINDOW;
        exStyle |= (int)ExtendedWindowStyles.WS_EX_TOOLWINDOW;

        SetWindowLong(hWnd, (int)GetWindowLongFields.GWL_EXSTYLE, exStyle);
    }

    [Flags]
    public enum ExtendedWindowStyles
    {
        WS_EX_TOOLWINDOW = 0x00000080,
        WS_EX_APPWINDOW = 0x00040000
    }

    public enum GetWindowLongFields
    {
        // ...
        GWL_EXSTYLE = -20
        // ...
    }

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);

    public const int SW_HIDE = 0;
    public const int SW_SHOW = 5;

    [DllImport("user32.dll")]
    public static extern IntPtr GetWindowLong(IntPtr hWnd, int nIndex);

    public static IntPtr SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong)
    {
        var error = 0;
        var result = IntPtr.Zero;
        // Win32 SetWindowLong doesn't clear error on success
        SetLastError(0);

        if (IntPtr.Size == 4)
        {
            // use SetWindowLong
            var tempResult = IntSetWindowLong(hWnd, nIndex, IntPtrToInt32(dwNewLong));
            error = Marshal.GetLastWin32Error();
            result = new(tempResult);
        }
        else
        {
            // use SetWindowLongPtr
            result = IntSetWindowLongPtr(hWnd, nIndex, dwNewLong);
            error = Marshal.GetLastWin32Error();
        }

        if (result == IntPtr.Zero && error != 0)
        {
            throw new System.ComponentModel.Win32Exception(error);
        }

        return result;
    }

    [DllImport("user32.dll", EntryPoint = "SetWindowLongPtr", SetLastError = true)]
    private static extern IntPtr IntSetWindowLongPtr(IntPtr hWnd, int nIndex, IntPtr dwNewLong);

    [DllImport("user32.dll", EntryPoint = "SetWindowLong", SetLastError = true)]
    private static extern int IntSetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);

    private static int IntPtrToInt32(IntPtr intPtr)
    {
        return unchecked((int)intPtr.ToInt64());
    }

    [DllImport("kernel32.dll", EntryPoint = "SetLastError")]
    public static extern void SetLastError(int dwErrorCode);

#endif

Link to public reproduction project repository

https://github.com/Snsaiu/TabbyCat/tree/feature/%2333