g.Draw blinking alot : I'm using this function in a Timer:

```python
  IntPtr Handle = FindWindow(null, "Notepad");

            if (radioButton1.Checked)
            {

                using (Graphics g = Graphics.FromHwnd(Handle))
                {

                    Pen PN = new Pen(pictureBox2.BackColor, (Convert.ToInt32(numericUpDown2.Value)));
                    g.DrawLine(PN, 961, 520, 961, 560);
                    g.DrawLine(PN, 985, 540, 935, 540);
                    g.Dispose();

                }
                }
```

But the draw is blinking alot even if i set the timer interval to 1