#include “stdafx.h”
#include <boost/signal.hpp>
#include <boost/bind.hpp>
class Parent1
{
public:
void Method()
{
_tprintf(_T(“Parent1::Method()\n”));
}
};
class Child1: public Parent1
{
public:
void Method()
{
_tprintf(_T(“Child1::Method()\n”));
}
};
//////////////////////////////////////////////////////////////////////////
// 这里只有这对父子类是真正的虚函数机制
class Parent2
{
public:
virtual void Method()
{
_tprintf(_T(“Parent2::Method()\n”));
}
};
class Child2: public Parent2
{
public:
void Method()
{
_tprintf(_T(“Child2::Method()\n”));
}
};
//////////////////////////////////////////////////////////////////////////
class Parent3
{
public:
void Method()
{
_tprintf(_T(“Parent3::Method()\n”));
}
};
class Child3: public Parent3
{
public:
virtual void Method()
{
_tprintf(_T(“Child3::Method()\n”));
}
};
int _tmain(int argc, _TCHAR* argv[])
{
Child1 c1;
Child2 c2;
Child3 c3;
boost::signal<void () > SignalTest1, SignalTest2,
SignalTest3,SignalTest4,
SignalTest5, SignalTest6;
SignalTest1.connect( boost::bind(&Parent1::Method, &c1) );
SignalTest1();
SignalTest2.connect( boost::bind(&Parent2::Method, &c2) ); // 所以在这里即使指定&Parent2::Method也会调用到Child2::Method
SignalTest2();
SignalTest3.connect( boost::bind(&Parent3::Method, &c3) );
SignalTest3();
SignalTest4.connect( boost::bind(&Child1::Method, &c1) );
SignalTest4();
SignalTest5.connect( boost::bind(&Child2::Method, &c2) );
SignalTest5();
SignalTest6.connect( boost::bind(&Child3::Method, &c3) );
SignalTest6();
return 0;
}
result:
Parent1::Method()
Child2::Method()
Parent3::Method()
Child1::Method()
Child2::Method()
Child3::Method()
