C / C++ / MFC

class ozstream
{
    public:
        ozstream() : m_fp(0), m_os(0) {
        }

// snip...

        ostream& os() {
            if (m_os == 0) m_os = new ostrstream;
            return *m_os;
        }

        void os_flush() {
            if (m_os && m_os->pcount()>0) {
                ostrstream* oss = new ostrstream;
                oss->fill(m_os->fill());
                oss->flags(m_os->flags());
                oss->precision(m_os->precision());
                oss->width(m_os->width());
                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
                delete[] m_os->str(); delete m_os; m_os = oss;
            }
        }

};

/*
 * Ascii write with the << operator;
 */
template <class T>
inline ostream& operator<<(ozstream& zs, const T& x) {
    zs.os_flush();
    return zs.os() << x;
}

void CTestView::OnHtm() 
{
	// TODO: Add your command handler code here
	HtmlHelp(AfxGetMainWnd()->GetSafeHwnd(), "ice.chm", HH_DISPLAY_TOPIC,0);
}