MFC A对话框调用B对话框函数并传参

A.cpp

void A::OnBnClickedButton1()
{
    //一个对话框类：Copen.cpp 
    B* m_B= (B*)GetParent();
    m_B->TcpB(_T("A窗口"), _T("调用B窗口"));
}
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B.h

public
	void B::TcpB(CString Name, CString Data)
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B.cpp

void B::TcpB(CString Name, CString Data)
{
    if (MessageBox(Data, Name, MB_YESNO | MB_ICONWARNING) == IDNO)
        return;
}
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