A:

unit Rowcol;

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, DB, DBTables, Grids, DBGrids;

type
  TForm1 = class(TForm)
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Table1: TTable;
    procedure DBGrid1ColEnter(Sender: TObject);
    procedure DataSource1DataChange(Sender: TObject; Field: TField);
  private
    { Private declarations }
  public
    { Public declarations }
    procedure ShowRowCol;
  end;
  THack = class(TDBGrid);

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.ShowRowCol;
begin
  caption := 'Row: ' + IntToStr(THack(DBGrid1).row) + '  ' + 'Col: ' + IntToStr(THack(DBGrid1).col);
end;

procedure TForm1.DBGrid1ColEnter(Sender: TObject);
begin
  ShowRowCol;
end;

procedure TForm1.DataSource1DataChange(Sender: TObject; Field: TField);
begin
  if (Sender as TDataSource).State = dsBrowse then ShowRowCol;
end;

end.