bool CPathUtils::Unzip2Folder(LPCWSTR lpZipFile, LPCWSTR lpFolder)
{
IShellDispatch *pISD;
Folder *pZippedFile = 0L;
Folder *pDestination = 0L;
long FilesCount = 0;
IDispatch* pItem = 0L;
FolderItems *pFilesInside = 0L;
VARIANT Options, OutFolder, InZipFile, Item;
HRESULT hr = S_OK;
CoInitialize(nullptr);
__try
{
if (CoCreateInstance(CLSID_Shell, nullptr, CLSCTX_INPROC_SERVER, IID_IShellDispatch, (void **)&pISD) != S_OK)
return false;
InZipFile.vt = VT_BSTR;
InZipFile.bstrVal = const_cast<BSTR>(lpZipFile);
hr = pISD->NameSpace(InZipFile, &pZippedFile);
if (FAILED(hr) || !pZippedFile)
{
pISD->Release();
return false;
}
OutFolder.vt = VT_BSTR;
OutFolder.bstrVal = const_cast<BSTR>(lpFolder);
pISD->NameSpace(OutFolder, &pDestination);
if (!pDestination)
{
pZippedFile->Release();
pISD->Release();
return false;
}
pZippedFile->Items(&pFilesInside);
if (!pFilesInside)
{
pDestination->Release();
pZippedFile->Release();
pISD->Release();
return false;
}
pFilesInside->get_Count(&FilesCount);
if (FilesCount < 1)
{
pFilesInside->Release();
pDestination->Release();
pZippedFile->Release();
pISD->Release();
return true;
}
pFilesInside->QueryInterface(IID_IDispatch, (void**)&pItem);
Item.vt = VT_DISPATCH;
Item.pdispVal = pItem;
Options.vt = VT_I4;
Options.lVal = 1024 | 512 | 16 | 4;//http://msdn.microsoft.com/en-us/library/bb787866(VS.85).aspx
bool retval = pDestination->CopyHere(Item, Options) == S_OK;
pItem->Release(); pItem = 0L;
pFilesInside->Release(); pFilesInside = 0L;
pDestination->Release(); pDestination = 0L;
pZippedFile->Release(); pZippedFile = 0L;
pISD->Release(); pISD = 0L;
return retval;
}
__finally
{
CoUninitialize();
}
}
