Edit

aggregatable attribute

  • Article

The [aggregatable] attribute indicates that the class supports aggregation.

[
   coclass-attribute-list,
   aggregatable
]
coclass coclass-name
{
   coclass-interface-list
}

Parameters

coclass-attribute-list

Other attributes that apply to the class.

coclass-name

The name of the class.

coclass-interface-list

A list of interfaces for the class.

Remarks

Use the [aggregatable] attribute on a coclass statement to let users know that the class supports aggregations. That is, the class allows its interfaces to be exposed by a container class as if these interfaces were the container's own interfaces.

The typeflag representation for this attribute is TYPEFLAG_FAGGREGATABLE.

Examples

[
    uuid(1e196b20-1f3c-1069-996b-00dd010fe676),
    aggregatable
]
coclass Form
{
    [default] interface IForm;
    [default, source] interface IFormEvents;
}

See also

coclass

Generating a Type Library With MIDL

ODL File Example

ODL File Syntax