| title | custom (C++) | Microsoft Docs | ||
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| ms.custom | |||
| ms.date | 11/04/2016 | ||
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| ms.topic | reference | ||
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| ms.assetid | 3abac928-4d55-4ea6-8cf6-8427a4ad79f1 | ||
| author | mikeblome | ||
| ms.author | mblome | ||
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Defines metadata for an object in the type library.
[ custom(
uuid,
value
) ];uuid
A unique ID.
value
A value that can be put into a variant.
The custom C++ attribute will cause information to be placed into the type library. You will need a tool that reads the custom value from type library.
The custom attribute has the same functionality as the custom MIDL attribute.
| Applies to | Non-COM interface, class, enums, idl_module methods, interface members, interface parameters, typedefs, unions, structs |
| Repeatable | Yes |
| Required attributes | coclass (when used on class) |
| Invalid attributes | None |
For more information about the attribute contexts, see Attribute Contexts.
IDL Attributes
Stand-Alone Attributes
Typedef, Enum, Union, and Struct Attributes
Parameter Attributes
Method Attributes
Class Attributes
Interface Attributes