problem to add arrow in editor

i hv used the following code to add an arrow in my editor:

textEditor = new (ELeave) CEikEdwin();

textEditor->SetContainerWindowL(*this);

textEditor->ConstructL();

// textEditor->SetObserver(this);

textEditor->CreateScrollBarFrameL(); textEditor->ScrollBarFrame()->SetTypeOfVScrollBar(CEikScrollBarFrame::EArrowHead);

textEditor->ScrollBarFrame()->SetTypeOfHScrollBar(CEikScrollBarFrame::EArrowHead);

textEditor->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);
textEditor->SetFocus(ETrue);
bt its nt showing any arrow in my editor.plz try to provide some help in this.