Исходный код

//---------------------------------------------------------
// Выводит список типов атрибутов
//---------------------------------------------------------

// get attribute definitions collection
CComPtr<ITDMSAttributeDefs> pAttrDefs;
CheckError(pApp->get_AttributeDefs(&pAttrDefs));

// show information for each attribute definition in the collection
printf("%-20s %-5s %-20s\n", "SysName", "Type", "Description");
long lCount;
CheckError(pAttrDefs->get_Count(&lCount));
for (long i = 0; i < lCount; i++) 
{
    // get attribute definition
    CComPtr<ITDMSAttributeDef> pAttrDef;
    VARIANT varItem;
    varItem.vt = VT_I4;
    varItem.lVal = i;
    CheckError(pAttrDefs->get_Item(varItem, &pAttrDef));
    // print information
    TDMSDataType type;
    BSTR bsSysName, bsDescription;
    CheckError(pAttrDef->get_SysName(&bsSysName));
    CheckError(pAttrDef->get_Description(&bsDescription));
    CheckError(pAttrDef->get_Type(&type));
    printf("%-20s %-5d %-20s\n", CSW2A(bsSysName), type, CSW2A(bsDescription));
    SysFreeString(bsSysName);
    SysFreeString(bsDescription);
}