adPropRequired = 1,
    adPropOptional = 2,
    adPropRead = 512,
    adPropWrite = 1024
};

enum ErrorValueEnum
{
    adErrProviderFailed = 3000,
    adErrInvalidArgument = 3001,
    adErrOpeningFile = 3002,
    adErrReadFile = 3003,
    adErrWriteFile = 3004,
    adErrNoCurrentRecord = 3021,
    adErrIllegalOperation = 3219,
    adErrCantChangeProvider = 3220,
    adErrInTransaction = 3246,
    adErrFeatureNotAvailable = 3251,
    adErrItemNotFound = 3265,
    adErrObjectInCollection = 3367,
    adErrObjectNotSet = 3420,
    adErrDataConversion = 3421,
    adErrObjectClosed = 3704,
    adErrObjectOpen = 3705,
    adErrProviderNotFound = 3706,
    adErrBoundToCommand = 3707,
    adErrInvalidParamInfo = 3708,
    adErrInvalidConnection = 3709,
    adErrNotReentrant = 3710,
    adErrStillExecuting = 3711,
    adErrOperationCancelled = 3712,
    adErrStillConnecting = 3713,
    adErrInvalidTransaction = 3714,
    adErrNotExecuting = 3715,
    adErrUnsafeOperation = 3716,
    adwrnSecurityDialog = 3717,
    adwrnSecurityDialogHeader = 3718,
    adErrIntegrityViolation = 3719,
    adErrPermissionDenied = 3720,
    adErrDataOverflow = 3721,
    adErrSchemaViolation = 3722,
    adErrSignMismatch = 3723,
    adErrCantConvertvalue = 3724,
    adErrCantCreate = 3725,
    adErrColumnNotOnThisRow = 3726,
    adErrURLDoesNotExist = 3727,
    adErrTreePermissionDenied = 3728,
    adErrInvalidURL = 3729,
    adErrResourceLocked = 3730,
    adErrResourceExists = 3731,
    adErrCannotComplete = 3732,
    adErrVolumeNotFound = 3733,
    adErrOutOfSpace = 3734,
    adErrResourceOutOfScope = 3735,
    adErrUnavailable = 3736,
    adErrURLNamedRowDoesNotExist = 3737,
    adErrDelResOutOfScope = 3738,
    adErrPropInvalidColumn = 3739,
    adErrPropInvalidOption = 3740,
    adErrPropInvalidValue = 3741,
    adErrPropConflicting = 3742,
    adErrPropNotAllSettable = 3743,
    adErrPropNotSet = 3744,
    adErrPropNotSettable = 3745,
    adErrPropNotSupported = 3746,
    adErrCatalogNotSet = 3747,
    adErrCantChangeConnection = 3748,
    adErrFieldsUpdateFailed = 3749,
    adErrDenyNotSupported = 3750,
    adErrDenyTypeNotSupported = 3751
};

enum ParameterAttributesEnum
{
    adParamSigned = 16,
    adParamNullable = 64,
    adParamLong = 128
};

enum ParameterDirectionEnum
{
    adParamUnknown = 0,
    adParamInput = 1,
    adParamOutput = 2,
    adParamInputOutput = 3,
    adParamReturnValue = 4
};

enum CommandTypeEnum
{
    adCmdUnspecified = -1,
    adCmdUnknown = 8,
    adCmdText = 1,
    adCmdTable = 2,
    adCmdStoredProc = 4,
    adCmdFile = 256,
    adCmdTableDirect = 512
};

enum EventStatusEnum
{
    adStatusOK = 1,
    adStatusErrorsOccurred = 2,
    adStatusCantDeny = 3,
    adStatusCancel = 4,
    adStatusUnwantedEvent = 5
};

enum EventReasonEnum
{
    adRsnAddNew = 1,
    adRsnDelete = 2,
    adRsnUpdate = 3,
    adRsnUndoUpdate = 4,
    adRsnUndoAddNew = 5,
    adRsnUndoDelete = 6,
    adRsnRequery = 7,
    adRsnResynch = 8,
    adRsnClose = 9,
    adRsnMove = 10,
    adRsnFirstChange = 11,
    adRsnMoveFirst = 12,
    adRsnMoveNext = 13,
    adRsnMovePrevious = 14,
    adRsnMoveLast = 15
};

enum SchemaEnum
{
    adSchemaProviderSpecific = -1,
    adSchemaAsserts = 0,
    adSchemaCatalogs = 1,
    adSchemaCharacterSets = 2,
    adSchemaCollations = 3,
    adSchemaColumns = 4,
    adSchemaCheckConstraints = 5,
    adSchemaConstraintColumnUsage = 6,
    adSchemaConstraintTableUsage = 7,
    adSchemaKeyColumnUsage = 8,
    adSchemaReferentialContraints = 9,
    adSchemaReferentialConstraints = 9,
    adSchemaTableConstraints = 10,
    adSchemaColumnsDomainUsage = 11,
    adSchemaIndexes = 12,
    adSchemaColumnPrivileges = 13,
    adSchemaTablePrivileges = 14,
    adSchemaUsagePrivileges = 15,
    adSchemaProcedures = 16,
    adSchemaSchemata = 17,
    adSchemaSQLLanguages = 18,
    adSchemaStatistics = 19,
    adSchemaTables = 20,
    adSchemaTranslations = 21,
    adSchemaProviderTypes = 22,
    adSchemaViews = 23,
    adSchemaViewColumnUsage = 24,
    adSchemaViewTableUsage = 25,
    adSchemaProcedureParameters = 26,
    adSchemaForeignKeys = 27,
    adSchemaPrimaryKeys = 28,
    adSchemaProcedureColumns = 29,
    adSchemaDBInfoKeywords = 30,
    adSchemaDBInfoLiterals = 31,
    adSchemaCubes = 32,
    adSchemaDimensions = 33,
    adSchemaHierarchies = 34,
    adSchemaLevels = 35,
    adSchemaMeasures = 36,
    adSchemaProperties = 37,
    adSchemaMembers = 38,
    adSchemaTrustees = 39,
    adSchemaFunctions = 40,
    adSchemaActions = 41,
    adSchemaCommands = 42,
    adSchemaSets = 43
};

enum FieldStatusEnum
{
    adFieldOK = 0,
    adFieldCantConvertValue = 2,
    adFieldIsNull = 3,
    adFieldTruncated = 4,
    adFieldSignMismatch = 5,
    adFieldDataOverflow = 6,
    adFieldCantCreate = 7,
    adFieldUnavailable = 8,
    adFieldPermissionDenied = 9,
    adFieldIntegrityViolation = 10,
    adFieldSchemaViolation = 11,
    adFieldBadStatus = 12,
    adFieldDefault = 13,
    adFieldIgnore = 15,
    adFieldDoesNotExist = 16,
    adFieldInvalidURL = 17,
    adFieldResourceLocked = 18,
    adFieldResourceExists = 19,
    adFieldCannotComplete = 20,
    adFieldVolumeNotFound = 21,
    adFieldOutOfSpace = 22,
    adFieldCannotDeleteSource = 23,
    adFieldReadOnly = 24,
    adFieldResourceOutOfScope = 25,
    adFieldAlreadyExists = 26,
    adFieldPendingInsert = 65536,
    adFieldPendingDelete = 131072,
    adFieldPendingChange = 262144,
    adFieldPendingUnknown = 524288,
    adFieldPendingUnknownDelete = 1048576
};

enum SeekEnum
{
    adSeekFirstEQ = 1,
    adSeekLastEQ = 2,
    adSeekAfterEQ = 4,
    adSeekAfter = 8,
    adSeekBeforeEQ = 16,
    adSeekBefore = 32
};

enum ADCPROP_UPDATECRITERIA_ENUM
{
    adCriteriaKey = 0,
    adCriteriaAllCols = 1,
    adCriteriaUpdCols = 2,
    adCriteriaTimeStamp = 3
};

enum ADCPROP_ASYNCTHREADPRIORITY_ENUM
{
    adPriorityLowest = 1,
    adPriorityBelowNormal = 2,
    adPriorityNormal = 3,
    adPriorityAboveNormal = 4,
    adPriorityHighest = 5
};

enum ADCPROP_AUTORECALC_ENUM
{
    adRecalcUpFront = 0,
    adRecalcAlways = 1
};

enum ADCPROP_UPDATERESYNC_ENUM
{
    adResyncNone = 0,
    adResyncAutoIncrement = 1,
    adResyncConflicts = 2,
    adResyncUpdates = 4,
    adResyncInserts = 8,
    adResyncAll = 15
};

enum MoveRecordOptionsEnum
{
    adMoveUnspecified = -1,
    adMoveOverWrite = 1,
    adMoveDontUpdateLinks = 2,
    adMoveAllowEmulation = 4
};

enum CopyRecordOptionsEnum
{
    adCopyUnspecified = -1,
    adCopyOverWrite = 1,
    adCopyAllowEmulation = 4,
    adCopyNonRecursive = 2
};

enum StreamTypeEnum
{
    adTypeBinary = 1,
    adTypeText = 2
};

enum LineSeparatorEnum
{
    adLF = 10,
    adCR = 13,
    adCRLF = -1
};

enum StreamOpenOptionsEnum
{
    adOpenStreamUnspecified = -1,
    adOpenStreamAsync = 1,
    adOpenStreamFromRecord = 4
};

enum StreamWriteEnum
{
    adWriteChar = 0,
    adWriteLine = 1,
    stWriteChar = 0,
    stWriteLine = 1
};

enum SaveOptionsEnum
{
    adSaveCreateNotExist = 1,
    adSaveCreateOverWrite = 2
};

enum FieldEnum
{
    adDefaultStream = -1,
    adRecordURL = -2
};

enum StreamReadEnum
{
    adReadAll = -1,
    adReadLine = -2
};

enum RecordTypeEnum
{
    adSimpleRecord = 0,
    adCollectionRecord = 1,
    adStructDoc = 2
};

struct __declspec(uuid("00000512-0000-0010-8000-00aa006d2ea4"))
_Collection : IDispatch
{
    //
    // Property data
    //

    __declspec(property(get=GetCount))
    long Count;

    //
    // Wrapper methods for error-handling
    //

    long GetCount ( );
    IUnknownPtr _NewEnum ( );
    HRESULT Refresh ( );

    //
    // Raw methods provided by interface
    //

    virtual HRESULT __stdcall get_Count (
        long * c ) = 0;
    virtual HRESULT __stdcall raw__NewEnum (
        IUnknown * * ppvObject ) = 0;
    virtual HRESULT __stdcall raw_Refresh ( ) = 0;
};

struct __declspec(uuid("00000513-0000-0010-8000-00aa006d2ea4"))
_DynaCollection : _Collection
{
    //
    // Wrapper methods for error-handling
    //

    HRESULT Append (
        IDispatch * Object );
    HRESULT Delete (
        const _variant_t & Index );

    //
    // Raw methods provided by interface
    //

    virtual HRESULT __stdcall raw_Append (
        IDispatch * Object ) = 0;
    virtual HRESULT __stdcall raw_Delete (
        VARIANT Index ) = 0;
};

struct __declspec(uuid("00000534-0000-0010-8000-00aa006d2ea4"))
_ADO : IDispatch
{
    //
    // Property data
    //

    __declspec(property(get=GetProperties))
    PropertiesPtr Properties;

    //
    // Wrapper methods for error-handling
    //

    PropertiesPtr GetProperties ( );

    //
    // Raw methods provided by interface
    //

    virtual HRESULT __stdcall get_Properties (
        struct Properties * * ppvObject ) = 0;
};

struct __declspec(uuid("00000504-0000-0010-8000-00aa006d2ea4"))
Properties : _Collection
{
    //
    // Property data
    //

    __declspec(property(get=GetItem))
    PropertyPtr Item[];

    //
    // Wrapper methods for error-handling
    //

    PropertyPtr GetItem (
        const _variant_t & Index );

    //
    // Raw methods provided by interface
    //

    virtual HRESULT __stdcall get_Item (
        VARIANT Index,
        struct Property * * ppvObject ) = 0;
};

struct __declspec(uuid("00000503-0000-0010-8000-00aa006d2ea4"))
Property : IDispatch
{
    //
    // Property data
    //

    __declspec(property(get=GetValue,put=PutValue))
    _variant_t Value;
    __declspec(property(get=GetName))
    _bstr_t Name;
    __declspec(property(get=GetType))
    enum DataTypeEnum Type;
    __declspec(property(get=GetAttributes,put=PutAttributes))
    long Attributes;

    //
    // Wrapper methods for error-handling
    //

    _variant_t GetValue ( );
    void PutValue (
        const _variant_t & pval );
    _bstr_t GetName ( );