HRESULT CTCPropBagOnRegKey::_GetObjectCLSID(const _bstr_t& strName,
CLSID& clsid, CRegKey& subkey, _bstr_t& strObjectID, IErrorLog* pErrorLog)
{
USES_CONVERSION;
// Clear the specified clsid, subkey, and strObjectID parameters
clsid = CLSID_NULL;
subkey.Close();
strObjectID.Empty();
// Open the subkey with the specified name
if (!strName.length())
subkey = m_key;
else if (!m_key.Exists(strName) || !subkey.Open(m_key, strName))
return HRESULT_FROM_WIN32(GetLastError());
// Use local resources for string loading
MCLibRes res;
// Read the object's CLSID string value
HRESULT hr;
_bstr_t strDesc;
if (subkey.GetString(m_szCLSID, strObjectID))
{
// Convert the object's CLSID string to a CLSID
LPOLESTR pszObjectID = const_cast<LPOLESTR>(T2COLE(strObjectID));
hr = CLSIDFromString(pszObjectID, &clsid);
if (SUCCEEDED(hr))
return hr;
// Format an error description string
strDesc.Format(IDS_FMT_FAIL_CONVERT_CLSID, strObjectID);
}
else if (subkey.GetString(m_szProgID, strObjectID))
{
// Convert the object's ProgID string to a CLSID
hr = CLSIDFromProgID(T2COLE(strObjectID), &clsid);
if (SUCCEEDED(hr))
return hr;
// Format an error description string
strDesc.Format(IDS_FMT_FAIL_CONVERT_CLSID, strObjectID);
}
else
{
// Save the last error
hr = HRESULT_FROM_WIN32(GetLastError());
// Format an error description string
strDesc.LoadString(IDS_FAIL_READ_CLSID);
}
// Log the error and return
return LogError("GetObjectCLSID", strDesc, hr, T2COLE(strName), pErrorLog);
}
HRESULT CTCPropBagOnRegKey::_ReadVariantFromValue(CRegKey& key,
const _bstr_t& strPropName, DWORD nType, int cbData, CComVariant& v,
IErrorLog* pErrorLog)
{
// Read the value from the registry based on the value type
switch (nType)
{
case REG_DWORD:
{
key.GetDWord(strPropName, (DWORD&)V_UI4(&v));
v.vt = VT_UI4;
break;
}
case REG_SZ:
{
_bstr_t strValue;
key.GetString(strPropName, strValue);
v = strValue;
break;
}
case REG_BINARY:
{
BYTE* pData = new BYTE[cbData];
key.GetBinary(strPropName, pData, cbData);
CMemFile file(pData, cbData);
CArchive ar(&file, CArchive::load, 0);
ar >> v;
ar.Close();
delete [] file.Detach();
break;
}
default:
{
// Use local resources
MCLibRes res;
// Format a description string
_bstr_t strDesc;
strDesc.Format(IDS_FMT_UNSUPPORTED_REGTYPE, nType);
// Log the error
USES_CONVERSION;
return LogError("ReadVariantFromValue", strDesc, E_FAIL,
T2COLE(strPropName), pErrorLog);
}
}
// Indicate success
return S_OK;
}
