由于某种原因，必须使用Win32 API来进行窗体无边框的处理，以下摘录摆渡得到的部分结果..
一、

 [DllImport("User32.dll", CallingConvention = CallingConvention.Winapi)]
 public static extern void SetWindowLong(IntPtr handle, int oldStyle, long newStyle);
 IntPtr hwnd = new System.Windows.Interop.WindowInteropHelper(this).Handle;
 SetWindowLong(hwnd, -16, 369164288);

使用VS每次启动或者编译项目的时候都会弹出窗口报错，无法忍受。

二、

[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
SetWindowLong(this.Handle, -16, 369164288);

代码为五楼的回复内容，其中“this.Handle”报错。

结果

目前使用代码为

[DllImport("User32.dll", CharSet = CharSet.Auto , CallingConvention = CallingConvention.Winapi)]
public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
private void Window_Loaded(object sender, RoutedEventArgs e)
{
      IntPtr hwnd = new System.Windows.Interop.WindowInteropHelper(this).Handle;
      SetWindowLong(hwnd, -16, 369164288);
}