M_PREVMSG
case M_PREVMSG:
BMessage* prevMsg = new BMessage(M_PREVMSG);
fToolBar->AddAction(M_PREVMSG, this, _RetrieveVectorIcon(7), NULL,
fToolBar->SetActionEnabled(M_PREVMSG, false);
_UpdateLabel(M_PREVMSG, B_TRANSLATE("Previous"), showLabel);
BMessage* prevMsg = new BMessage(M_PREVMSG);
BMessage* prevMsg = new BMessage(M_PREVMSG);