private void FTextArea_HelpRequested(object sender, HelpEventArgs args)
{
if (_textEdit.ActiveTextAreaControl.SelectionManager.HasSomethingSelected)
{
Dataphoria.InvokeHelp(_textEdit.ActiveTextAreaControl.SelectionManager.SelectedText);
}
else
{
string word = "";
// the next 7 lines added/modified to overcome bug in FindWordStart
// runtime error if Caret is at end of document
int caretOffset = _textEdit.ActiveTextAreaControl.Caret.Offset;
int textLength = _textEdit.Document.TextLength;
if (textLength > 0)
{
if (caretOffset == textLength)
{
caretOffset--;
}
int first = TextEdit.FindWordStart(_textEdit.Document, caretOffset);
int last = TextEdit.FindWordEnd(_textEdit.Document, caretOffset);
word = _textEdit.Document.GetText(first, last - first);
}
if (word.Trim().Length == 0)
{
Dataphoria.InvokeHelp(DesignerID);
}
else
{
Dataphoria.InvokeHelp(word);
}
}
}
protected override void OnHelpRequested(HelpEventArgs args)
{
base.OnHelpRequested(args);
Dataphoria.InvokeHelp("Analyzer");
}