title: DBGrid get selected cell
body: <p>I need to get the value of the selected cell of a DBGrid in Delphi.</p>
  
  <p>I have no idea how to do it. I tried dbGrid's OnMouseMove</p>
  
  <pre><code>pt : TGridCoord;
  ...
  pt:=dbGrid.MouseCoord(x, y);
  </code></pre>
  
  <p>[Edited]
  I can use the OnCellClick to get the value of the cell with "Column.Field.AsString", but I want to get the value from the first column when I click on any column of that row.</p>