如何在C#中检查userControl是否在其他人面前？

if (userControl.Visible)
{
    // userControl可见，执行相应的操作
}
else
{
    // userControl不可见，执行相应的操作
}

Rectangle bounds = userControl.Bounds;
Point location = userControl.PointToScreen(bounds.Location);
Size size = bounds.Size;

bool isUserControlVisible = false;

foreach (Screen screen in Screen.AllScreens)
{
    Rectangle screenBounds = screen.Bounds;
    if (screenBounds.Contains(location) && screenBounds.Contains(location.X + size.Width, location.Y + size.Height))
    {
        isUserControlVisible = true;
        break;
    }
}

if (isUserControlVisible)
{
    // userControl在其他人面前
}
else
{
    // userControl不在其他人面前
}