chtmlview如何取得框架网页的源代码

Question

用chtmlview打开的带框架的网页，如何取得框架中所有包含的网页的html源文件？

Answer 1

QueryInterface IWebBrowser2
see http://support.microsoft.com/kb/q271868/

Answer 2

我根据上面的资料写了下面的函数，
BOOL CHtmlView::GetFrameSource( IDispatch *pDisp, CString& refString )
{
    BOOL bRetVal = FALSE;
    HRESULT hr = S_OK;
    if ( pDisp != NULL )
    {
        CComQIPtr<IWebBrowser2> pBrowser = pDisp;
        if ( pBrowser != NULL )
        {
            IDispatch *pDispDoc = NULL;
            hr = pBrowser->get_Document(&pDispDoc);
            if ( !( FAILED(hr) || !pDisp ) ) 
            {
                CComQIPtr<IPersistStreamInit> pStmInit = pDisp;
                if ( !pStmInit )
                {
                    HGLOBAL hMemory;
                    hMemory = GlobalAlloc(GMEM_MOVEABLE, 0);
                    if (hMemory != NULL)
                    {
                        CComQIPtr<IPersistStreamInit> spPSI = pDispDoc;
                        if( spPSI != NULL)
                        {
                            CComPtr<IStream> spStream;
                            if (SUCCEEDED(CreateStreamOnHGlobal(hMemory, TRUE, &spStream)))
                            {
                                spPSI->Save(spStream, FALSE);
                                LPCTSTR pstr = (LPCTSTR) GlobalLock(hMemory);
                                if (pstr != NULL)
                                {
                                    // Stream is always ANSI, but CString
                                    // assignment operator will convert implicitly.
                                    bRetVal = TRUE;
                                    TRY
                                    {                       
                                        refString = pstr;
                                    }
                                    CATCH_ALL(e)
                                    {
                                        bRetVal = FALSE;
                                        DELETE_EXCEPTION(e);
                                    }
                                    END_CATCH_ALL                                        if(bRetVal == FALSE)
                                            GlobalFree(hMemory);
                                        else
                                            GlobalUnlock(hMemory);
                                }
                            }
                        }
                    }
                }
            }
            RELEASE(pDispDoc);
        }
    }
    return bRetVal;
}但是只能用在DocumentComplete里，因为我不知道怎么获得pDisp，好像只有在DocumentComplete里才能获得框架各页的pDisp，这样没有通用性，我想要实现的是像GetSource一样的功能，就是只要网页下载完毕，就可以在任意时刻获得框架html源文件，而不是只能在DocumentComplete里
最好能直接告诉我该怎么做，不要让我在一堆资料里自己找

Answer 3

终于成了
下面是代码，老大帮我看看有没有什么错，还有什么需要改进的地方。
BOOL CHtmlView::GetFrameSource( CString& refString, long frameIndex )
{
    BOOL bRetVal = FALSE;
    if( frameIndex == 0 )
    {
        bRetVal = GetSource( refString );
    }
    else if( frameIndex > 0 )
    {
        frameIndex = frameIndex - 1;
        CComQIPtr<IDispatch> pDisp = GetHtmlDocument();        if ( pDisp != NULL )
        {
            CComQIPtr<IHTMLDocument2> pHtmlDoc = pDisp;            if ( pHtmlDoc != NULL )
            {
                CComQIPtr<IHTMLFramesCollection2> pFrames;
                pHtmlDoc->get_frames(&pFrames);                if ( pFrames!= NULL ) 
                {
                    long frameCount = 0;
                    pFrames->get_length( &frameCount );                    if ( frameCount > frameIndex )
                    {
                        COleVariant varIndex( frameIndex, VT_I4 );
                        COleVariant varpDisp;
                        pFrames->item( varIndex, varpDisp );
                        CComQIPtr<IDispatch> pDispDoc = varpDisp.pdispVal;                        if( pDispDoc != NULL )
                        {
                            CComQIPtr<IHTMLWindow2> pHtmlWnd = pDispDoc;                            if( pHtmlWnd != NULL )
                            {
                                CComQIPtr<IHTMLDocument2> pHtmlDocf;
                                pHtmlWnd->get_document(&pHtmlDocf);                                if( pHtmlDocf != NULL )
                                {
                                    HGLOBAL hMemory;
                                    hMemory = GlobalAlloc(GMEM_MOVEABLE, 0);                                    if (hMemory != NULL)
                                    {
                                        CComQIPtr<IPersistStreamInit> spPSI = pHtmlDocf;                                        if( spPSI != NULL)
                                        {
                                            CComPtr<IStream> spStream;
                                            if (SUCCEEDED(CreateStreamOnHGlobal(hMemory, TRUE, &spStream)))
                                            {
                                                spPSI->Save(spStream, FALSE);
                                                LPCTSTR pstr = (LPCTSTR) GlobalLock(hMemory);
                                                if (pstr != NULL)
                                                {
                                                    // Stream is always ANSI, but CString
                                                    // assignment operator will convert implicitly.
                                                    bRetVal = TRUE;
                                                    TRY
                                                    {                       
                                                        refString = pstr;
                                                    }
                                                    CATCH_ALL(e)
                                                    {
                                                        bRetVal = FALSE;
                                                        DELETE_EXCEPTION(e);
                                                    }
                                                    END_CATCH_ALL                                                        if(bRetVal == FALSE)
                                                            GlobalFree(hMemory);
                                                        else
                                                            GlobalUnlock(hMemory);
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    
    return bRetVal;
}