protected override bool OnDeactivate()
{
m_editEvents.OnSketchModified -= OnSketchModified;
m_editEvents5.OnShapeConstructorChanged -= OnShapeConstructorChanged;
m_editEvents.OnSketchFinished -= OnSketchFinished;
// Destroy address map tip
m_addressMaptip.Close();
m_addressMaptip = null;
m_settings.Save();
return(true);
}