dll代码

typedef int (*CallBackType)(int a, int b);

CallBackType m_CallBackType;

int WINAPI MFCCallBackDllTest(int a, int b)

{

int result = m_CallBackType(a, b);

return result;

}

int WINAPI SetCallBackFun(CallBackType inCallBackType)

{

m_CallBackType = inCallBackType;

return 0;

}

调用方代码

int myTestFun(int a, int b)

{

return a - b;

}

void CMFCCallBackDemoDlg::OnBnClickedButton1()

{

SetCallBackFun(myTestFun);

int result = MFCCallBackDllTest(3,4);

}