[c#]
private Rectangle GetCellRect(FlyGrid flyGrid, NodeBase node, Column column)
{
  FlyGridViewPort viewPort = flyGrid.ActiveRootPort;
  int row = viewPort.Rows.GetRowFromNode(node);
  if (row != -1) //node is visible
  {
    int col = viewPort.Columns.GetColumnCellIndex(column);
    if (col != -1)//column is visible
    {
      return viewPort.GetRectangle(viewPort.Bounds, row, col);
    }
  }
  return Rectangle.Empty;
}