pizzaorder.idl

VC++串口通信设。本书详细说明讲解了在VC++环境下编写串口通信得过程。值得一看

// Bring in needed system IDL files
import "PizzaTypes.idl";


//
//  Interface information for IPizzaOrderTaker
//
[ object, uuid(F4C06194-6420-11d0-8C23-00400539F36B) ]
interface IPizzaOrderTaker : IUnknown
{
   HRESULT ResetPizza    ();
   HRESULT SetPizzaSize  ([in]  PizzaSize     eNewSize);
   HRESULT GetPizzaSize  ([out] PizzaSize*    peCurrSize);
   HRESULT AddTopping    ([in]  Topping       eNewTopping,
                          [in]  ToppingSize   eNewToppingSize);
   HRESULT RemoveTopping ([in]  Topping       eRemTopping);
   HRESULT GetNumToppings([out] ULONG*        pulNumToppings);
   HRESULT GetTopping    ([in]  ULONG         ulListPos,
                          [out] Topping*      peTopping,
                          [out] ToppingSize*  peToppingSize);
   HRESULT GetPizzaPrice ([out] ULONG*        pulPrice);
   HRESULT OrderPizza    ([in]  DeliveryInfo* pDeliveryInfo,
                          [in]  CreditCard    eCreditCardType,
                          [in]  BSTR          bstrCreditCardNum,
                          [out] ULONG*        pulPrice);
};


//
//  Class information for PizzaOrderTaker3
// 
[ uuid(B5501790-A193-11D0-8CA6-00400539F36B) ]
coclass PizzaOrderTaker3
{
   interface IPizzaOrderTaker;
};