如何利用VB.net 在桌面中标示十字线条
小弟目前知道在picture控键中或是form对象中 划出十字线条的
代码 可是如果要在桌面去表现出十字线条的话 要怎么做到呢?

以下是实时在picture 控键 绘出十字线条的代码:

Public  Class Form1

Private Sub PictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
        PictureBox1.Invalidate()
        
    End Sub


   Private Sub PictureBox_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
        Dim point As Point = PointToClient(MousePosition)
        Dim x As Integer = point.X
        Dim y As Integer = point.Y
        With e.Graphics
            .DrawLine(Pens.Black, 0, 65, PictureBox1.Width, 65)
            .DrawLine(Pens.Black, x, 0, x, PictureBox1.Height)


        End With
    End Sub

End Class

我在猜基本的思路是要先将整个桌面当成一个对象 然后去触发这个对象产生

绘出十字线条的事件吗? 小弟瞎猜的 不晓得哪位大侠能否提供实际的做法

[解决办法]
不推荐在桌面上画，最好做一个全屏窗口，先给桌面截图，然后把截图装入这个窗口，再画。