#include #include #include #include #include #include #include class TAp_iva : public TApplication { TTable* _reg, * _lia, * _lbu; TLocalisamfile* _nditte; int _annoiva; TString _annop; long _ditta; char _frequenza; bool _is_minagr; protected: static bool mask_annoiva(TMask_field&, KEY); public: virtual bool create(); virtual bool destroy(); virtual bool menu(MENU_TAG m); bool setta(); bool apertura_iva(); TAp_iva() {} };