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clone_values.cpp：源码内容
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 * Source last modified: $Id: clone_values.cpp,v 1.1.6.3 2004/07/09 01:48:15 hubbe Exp $
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#include "hxtypes.h"
#include "hxcom.h"
#include "ihxpckts.h"
#include "hxcomm.h"
#include "clone_values.h"
HX_RESULT CloneIHXValues(IHXValues*             pSrc,
                         IHXCommonClassFactory* pCCF,
                         REF(IHXValues*)        rpDst)
{
    HX_RESULT retVal = HXR_FAIL;
    if (pSrc && pCCF)
    {
        // Create an IHXValues
        IHXValues* pDst = NULL;
        retVal = pCCF->CreateInstance(CLSID_IHXValues, (void**) &pDst);
        if (SUCCEEDED(retVal))
        {
            // Copy the ULONG32 values
            const char* pszName = NULL;
            ULONG32     ulValue = 0;
            HX_RESULT   rv      = pSrc->GetFirstPropertyULONG32(pszName, ulValue);
            while (SUCCEEDED(rv) && SUCCEEDED(retVal))
            {
                retVal = pDst->SetPropertyULONG32(pszName, ulValue);
                if (SUCCEEDED(retVal))
                {
                    rv = pSrc->GetNextPropertyULONG32(pszName, ulValue);
                }
            }
            if (SUCCEEDED(retVal))
            {
                // Copy the buffer properties
                IHXBuffer* pSrcBuf = NULL;
                rv = pSrc->GetFirstPropertyBuffer(pszName, pSrcBuf);
                while (SUCCEEDED(rv) && SUCCEEDED(retVal))
                {
                    retVal = CloneAndSetIHXBuffer(pSrcBuf, pCCF, pDst, pszName,
                                                  IHXVALUES_PROP_TYPE_BUFFER);
                    if (SUCCEEDED(retVal))
                    {
                        HX_RELEASE(pSrcBuf);
                        rv = pSrc->GetNextPropertyBuffer(pszName, pSrcBuf);
                    }
                }
                HX_RELEASE(pSrcBuf);
                if (SUCCEEDED(retVal))
                {
                    // Copy the CString properties
                    rv = pSrc->GetFirstPropertyCString(pszName, pSrcBuf);
                    while (SUCCEEDED(rv) && SUCCEEDED(retVal))
                    {
                        retVal = CloneAndSetIHXBuffer(pSrcBuf, pCCF, pDst, pszName,
                                                      IHXVALUES_PROP_TYPE_CSTRING);
                        if (SUCCEEDED(retVal))
                        {
                            HX_RELEASE(pSrcBuf);
                            rv = pSrc->GetNextPropertyBuffer(pszName, pSrcBuf);
                        }
                    }
                    HX_RELEASE(pSrcBuf);
                    if (SUCCEEDED(retVal))
                    {
                        // Copy the out parameter
                        HX_RELEASE(rpDst);
                        rpDst = pDst;
                        rpDst->AddRef();
                    }
                }
            }
        }
        HX_RELEASE(pDst);
    }
    return retVal;
}
HX_RESULT CloneAndSetIHXBuffer(IHXBuffer*             pSrc,
                               IHXCommonClassFactory* pCCF,
                               IHXValues*             pValues,
                               const char*            pszName,
                               UINT32                 ulType)
{
    HX_RESULT retVal = HXR_FAIL;
    if (pSrc && pCCF && pValues && pszName &&
        (ulType == IHXVALUES_PROP_TYPE_BUFFER ||
         ulType == IHXVALUES_PROP_TYPE_CSTRING))
    {
        // Clone the IHXBuffer
        IHXBuffer* pDst = NULL;
        retVal = CloneIHXBuffer(pSrc, pCCF, pDst);
        if (SUCCEEDED(retVal))
        {
            // Set the cloned buffer into the IHXValues
            if (ulType == IHXVALUES_PROP_TYPE_BUFFER)
            {
                retVal = pValues->SetPropertyBuffer(pszName, pDst);
            }
            else
            {
                retVal = pValues->SetPropertyCString(pszName, pDst);
            }
        }
        HX_RELEASE(pDst);
    }
    return retVal;
}
HX_RESULT CloneIHXBuffer(IHXBuffer*             pSrc,
                         IHXCommonClassFactory* pCCF,
                         REF(IHXBuffer*)        rpDst)
{
    HX_RESULT retVal = HXR_FAIL;
    if (pSrc && pCCF)
    {
        // Create an IHXBuffer
        IHXBuffer* pDst = NULL;
        retVal = pCCF->CreateInstance(CLSID_IHXBuffer, (void**) &pDst);
        if (SUCCEEDED(retVal))
        {
            // Copy the buffer
            retVal = pDst->Set(pSrc->GetBuffer(), pSrc->GetSize());
            if (SUCCEEDED(retVal))
            {
                // Assign the out parameter
                HX_RELEASE(rpDst);
                rpDst = pDst;
                rpDst->AddRef();
            }
        }
        HX_RELEASE(pDst);
    }
    return retVal;
}

						