使用PX_Blob序列化_variant_t（VT_ARRAY|VT_UI1）出现的一些问题

green82 2013-06-26 10:08:17

编写了一个ACTIVEX控件，想要把一些文件序列化到该控件，这个控件在PPT中使用，但是始终无法序列化成功，希望大家能帮忙看看大概是什么问题，代码在下面，就是想实现类似FLASH控件的EmbedMovie=TRUE的功能，谢谢
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//代码如下



void CBrowserResOcxCtrl::DoPropExchange(CPropExchange* pPX)

{

  ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));

  COleControl::DoPropExchange(pPX);

  PX_Resource(pPX);

}

void CBrowserResOcxCtrl::PX_Resource(CPropExchange*  pPX)

{

	//////////////////////////////////////////////////////////////////////////

	if (pPX->GetVersion() == (DWORD)MAKELONG(_wVerMinor, _wVerMajor))

	{

		if(!pPX->IsLoading())

		{

			_variant_t vContent;

			m_CreateHtml.CreateVariantFromFile(&vContent,....);

			BYTE by[4];

			DWORD dw = vContent.parray->rgsabound->cElements;

			WORD h,l;

			h = HIWORD(dw);

			l = LOWORD(dw);

			by[0] = LOBYTE(l);

			by[1] = HIBYTE(l);

			by[2] = LOBYTE(h);

			by[3] = HIBYTE(h);			////////////////////////////////////////////////////////////////////////

			m_hRes = GlobalAlloc(GPTR, dw+4);

			if(m_hRes != NULL)

			{

				BYTE* pMem = (BYTE*)GlobalLock(m_hRes);

				if(pMem!=NULL)

				{

					///*(DWORD*)pMem = dw;

					pMem[0] = by[0];

					pMem[1] = by[1];

					pMem[2] = by[2];

					pMem[3] = by[3];

					BYTE* pTemp = NULL;

					SafeArrayAccessData(vContent.parray, (void **)&pTemp);

					for (int n=0;n<dwLen;n++)

					{

						BYTE by;

						by = pTemp[n];

						pMem[n+4]=pTemp[n];

					}					

					BOOL f = PX_Blob(pPX, _T("BlobRes"),m_hRes);

					SafeArrayUnaccessData(vContent.parray);

					GlobalUnlock(m_hRes);

					m_hRes = NULL;

				}

				else

				{

					HGLOBAL hTmp = NULL;

					BOOL b = PX_Blob(pPX, _T("BlobRes"), hTmp);

				}

				GlobalFree(m_hRes);

				m_hRes = NULL;

			}

			else

				BOOL b = PX_Blob(pPX, _T("BlobRes"), m_hRes);

		}

		else

		{

			BOOL b = PX_Blob(pPX,  _T("BlobRes"), m_hRes);

			if(m_hRes!=NULL)

			{

				BYTE* pMem = (BYTE*)GlobalLock(m_hRes);

				DWORD dwLen = GlobalSize(m_hRes);

				_variant_t vContent;				

				HRESULT hr;

				long lngOffset = 4;

				UCHAR chData;

				SAFEARRAY FAR *psa = NULL;

				SAFEARRAYBOUND rgsabound[1];

				rgsabound[0].lLbound = 0;

				rgsabound[0].cElements = dwLen-sizeof(DWORD);

				psa = SafeArrayCreate(VT_UI1,1,rgsabound);

				while(lngOffset < dwLen-4)

				{

					chData    = (UCHAR)(pMem[lngOffset]);

					hr = SafeArrayPutElement(psa, &lngOffset, &chData);

					if(FAILED(hr))

					{

						printf("错误");

					}

					lngOffset++;

				}

				vContent.vt = VT_ARRAY|VT_UI1;

				vContent.parray = psa;

		m_CreateHtml.CreateFileFromVariant(vContent,....);

				GlobalUnlock(m_hRes);

			}

			GlobalFree(m_hRes);

			m_hRes = NULL;



		}

	}





}