ULONG CV8File::Deflate(unsigned char *DataIn, ULONG DataInSize, unsigned char **DataOut)
{
// ������� ����� ����� �� string
HRESULT hr;
//USES_CONVERSION;
/*
IzlibEnginePtr iLibEngine;
CoInitialize(NULL);
hr = iLibEngine.CreateInstance(L"V75.zlibEngine");
if (FAILED(hr))
{
AfxMessageBox("err");
return 0;
}
*/
IStreamPtr pStreamNew;
IStream *pIStrNew;
if (S_OK == CreateStreamOnHGlobal(NULL, TRUE, &pIStrNew))
{
pStreamNew.Attach(pIStrNew, false);
ULONG pcbWritten = 0;
if (pIStrNew->Write(DataIn, DataInSize, &pcbWritten) != S_OK)
{
AfxMessageBox("err");
//pBkEndUI->DoMessageLine("pStreamOut->Read(&lpStr[0], cbStreamSizeOut, &pcbRead) != S_OK", mmBlackErr);
return 0;
}
}
LARGE_INTEGER __zero;
__zero.QuadPart = __int64(0);
if (pStreamNew->Seek(__zero, 0, NULL) == S_OK)
{
}
ULONG cbStreamSizeOut;
IStreamPtr pStreamOut;
IStream *pIStrOut;
if (S_OK == CreateStreamOnHGlobal(NULL, TRUE, &pIStrOut))
{
pStreamOut.Attach(pIStrOut, false);
try
{
//CoInitialize(NULL);
//IzlibEnginePtr iLibEngine;
//hr = iLibEngine.CreateInstance(L"V75.zlibEngine");
//if (FAILED(hr))
//{
// //pBkEndUI->DoMessageLine("error iLibEngine->pkDecompress", mmBlackErr);
// AfxMessageBox("err");
// return 0;
//}
hr = iLibEngine->pkCompress(pStreamNew, pStreamOut);
if (FAILED(hr))
{
//pBkEndUI->DoMessageLine("error iLibEngine->pkDecompress", mmBlackErr);
AfxMessageBox("err");
return 0;
}
else
{
STATSTG St;
pStreamOut->Stat(&St, STATFLAG_NONAME);
cbStreamSizeOut = St.cbSize.LowPart;
LARGE_INTEGER __zero;
__zero.QuadPart = __int64(0);
if (pStreamOut->Seek(__zero, 0, NULL) == S_OK)
{
*DataOut = (unsigned char*)realloc(*DataOut, cbStreamSizeOut);
ULONG pcbRead = 0;
if (pStreamOut->Read(*DataOut, cbStreamSizeOut, &pcbRead) != S_OK)
{
AfxMessageBox("err");
//pBkEndUI->DoMessageLine("pStreamOut->Read(&lpStr[0], cbStreamSizeOut, &pcbRead) != S_OK", mmBlackErr);
return 0;
}
}
else
{
AfxMessageBox("err");
//pBkEndUI->DoMessageLine("pStreamOut->Seek(__zero, 0, NULL) != S_OK", mmBlackErr);
return 0;
}
}
}
catch (_com_error& err)
{
//CString str;
//str.Format("V75.zlibEngine Error:%s", err.ErrorMessage());
AfxMessageBox(err.ErrorMessage());
//pBkEndUI->DoMessageLine(str, mmBlackErr);
return 0;
}
}
else
{
//pBkEndUI->DoMessageLine("error in CreateStreamOnHGlobal", mmBlackErr);
AfxMessageBox("err");
return 0;
}
return cbStreamSizeOut;
}
