WPFでウィンドウをフロント最上位のウィンドウとしてアクティブにする方法

[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();

[DllImport("user32.dll")]
private static extern uint GetWindowThreadProcessId(IntPtr hWnd, IntPtr ProcessId);

[DllImport("user32.dll")]
private static extern bool AttachThreadInput(uint idAttach, uint idAttachTo, bool fAttach);

[DllImport("user32.dll")]
public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

public static void SetWindowToForegroundWithAttachThreadInput(Window window)
{
    var interopHelper = new WindowInteropHelper(window);
    var thisWindowThreadId = GetWindowThreadProcessId(interopHelper.Handle, IntPtr.Zero);
    var currentForegroundWindow = GetForegroundWindow();
    var currentForegroundWindowThreadId = GetWindowThreadProcessId(currentForegroundWindow, IntPtr.Zero);
    
    AttachThreadInput(currentForegroundWindowThreadId, thisWindowThreadId, true);

    window.Show();
    window.Activate();
     //             
    AttachThreadInput(currentForegroundWindowThreadId, thisWindowThreadId, false);
    //              
            window.Topmost = true;
            window.Topmost = false;
}