C#禁用双击窗体图标关闭窗体的方法

[DllImport("user32.dll")]
private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);
protected override void WndProc(ref Message m)
{
 if (m.Msg == 0x112)
 {
  if (m.WParam.ToInt32() == 61539 || m.WParam.ToInt32() == 61587)
  {
   return;
  }
 }
 base.WndProc(ref m);
}