title: TStringGrid - is there a simple way to get the "current/selected" row?
body: <p>I can go the long way round, loop over each row, get a <code>TRect</code> from <code>CellRect(col, row)</code>, then query its <code>State</code> for <code>gdSelected</code> ...</p>
  
  <p>But isn't there a quicker way to get the row number of the currently selected row, if any?</p>