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 1 #include "stdafx.h"
 2 #include <objbase.h>
 3 #include <iostream>
 4 
 5 using std::cout;
 6 using std::endl;
 7 
 8 void trace(const char *pMsg) {cout << pMsg << endl;}
 9 
10 interface IX { // Interface
11     virtual void __stdcall Fx1() = 0;
12     virtual void __stdcall Fx2() = 0;
13 };
14 
15 interface IY {
16     virtual void __stdcall Fy1() = 0;
17     virtual void __stdcall Fy2() = 0;
18 };
19 
20 class CA : public IX, public IY { // Component
21 public:
22     virtual void __stdcall Fx1() {cout << "CA::Fx1" << endl;}
23     virtual void __stdcall Fx2() {cout << "CA::Fx2" << endl;}
24     virtual void __stdcall Fy1() {cout << "CA::Fy1" << endl;}
25     virtual void __stdcall Fy2() {cout << "CA::Fy2" << endl;}
26 };
27 
28 int _tmain(int argc, _TCHAR* argv[]) // Client
29 {
30     trace("Client: Create an instance of the component.");
31     CA * pA = new CA;
32 
33     IX * pIX = pA;
34     trace("Client: Use the IX interface.");
35     pIX->Fx1();
36     pIX->Fx2();
37 
38     IY * pIY = pA;
39     trace("Client: Use the IY interface.");
40     pIY->Fy1();
41     pIY->Fy2();
42 
43     trace("Client: delete the component");
44     delete pA;
45     return 0;
46 }