DrawGrid DrawFocusRect

http://docwiki.embarcadero.com/CodeExamples/XE7/en/GridLineWidth_%28C%2B%2B%29

void __fastcall TForm1::Button1Click(TObject *Sender)

{

  if (DrawGrid1->DefaultColWidth > )

    DrawGrid1->GridLineWidth = ;

  else

    DrawGrid1->GridLineWidth = ;

}

void __fastcall TForm1::DrawGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect,

          TGridDrawState State)

{

  int index = ARow * DrawGrid1->ColCount + ACol;

  DrawGrid1->Canvas->Brush->Color = clBackground;

  DrawGrid1->Canvas->FillRect(Rect);

  ImageList1->Draw(DrawGrid1->Canvas, Rect.Left, Rect.Top, index, True);

  if (State.Contains(gdFocused))

  {

    DrawGrid1->Canvas->DrawFocusRect(Rect);

  }

}

void __fastcall TForm1::DrawGrid1SelectCell(TObject *Sender, int ACol, int ARow, bool &CanSelect)

{

  CanSelect = True;

}