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;
}
