custom(guid, value)

Indicates a custom attribute (one not defined by Automation). This feature enables the independent definition and use of attributes.

Parameters

guid

The standard GUID form.

value

A value that can be put into a variant. See also the Const directive.

Allowed on

Library, typeinfo, typlib, variable, function, parameter.

Not allowed on

A member of a coclass (IMPLTYPE).

Representation

Can be retrieved using:

• ITypeLib2::GetCustData
• ITypeInfo2::GetCustData
• ITypeInfo2::GetAllCustData
• ITypeInfo2::GetFuncCustData
• ITypeInfo2::GetAllFuncCustData
• ITypeInfo2::GetVarCustData
• ITypeInfo2::GetAllVarCustData
• ITypeInfo2::GetParamCustData
• ITypeInfo2::GetAllParamCustData
• ITypeInfo2::GetImplTypeCustData
• ITypeInfo2::GetAllImplTypeCustData

Flags

None.

Example

The following example shows how to add a string-valued attribute that gives the ProgID for a class:

[
   custom(GUID_PROGID, "DAO.Dynaset")
]
coclass Dynaset
{
   [default] interface Dynaset;
   [default, source] interface IDynasetEvents;
}

Related topics

Attribute Descriptions