private void Form1_KeyUp(object sender, KeyEventArgs e)
{
if (e.KeyData == Keys.PageUp)
{
renderer.MoveLensLeft();
}
else if (e.KeyData == Keys.PageDown)
{
renderer.MoveLensRight();
}
else if (e.KeyData == Keys.Home)
{
renderer.IncreaseScale();
}
else if (e.KeyData == Keys.End)
{
renderer.DecreaseScale();
}
else if (e.KeyData == Keys.Escape)
{
this.Close();
}
}
