좌표값 픽셀가져오기

    Function GetScreenPixel(ByVal pt As Point) As Color
        Using bmp As New Bitmap(1, 1)
            Using g As Graphics = Graphics.FromImage(bmp)
                g.CopyFromScreen(pt, Point.Empty, New Size(1, 1))
                Return bmp.GetPixel(0, 0)
            End Using
        End Using
    End Function