public LectureManagerMainForm()
{
InitializeComponent();
_textDocumentReader = new TextDocumentReader();
_syncObj = new SyncLock();
Mode = SpeechMode.Paragraph;
FileLoaded = false;
ShowInTaskbar = false;
_paragraphs = new List<Paragraph>();
_sentences = new List<Sentence>();
_invoker = new ExtensionInvoker(this);
LectureText = String.Empty;
Top = 0;
Left = 0;
_speakAllParagraphTimer = new Timer();
_speakAllParagraphTimer.Tick += _speakAllParagraphTimer_Tick;
LocationChanged += LectureManagerMainForm_LocationChanged;
}