private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
thisDrawing.draw(e.Graphics);
if (lineInProgress)
{
e.Graphics.DrawLine(currentPen, startx, starty, endx, endy);
}
}
private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
thisDrawing.draw(e.Graphics);
}