private void textCountsPerUnit_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
if (e.KeyCode == System.Windows.Forms.Keys.Enter)
{
try
{
double countsPerUnit = Convert.ToDouble(textCountsPerUnit.Text);
if (countsPerUnit > 0)
{
axis.SetUnit("mm", countsPerUnit);
}
}
catch (Exception ex)
{
DisplayError("Set Unit error: " + ex.Message);
}
}
}