custom (C++)

Article
01/03/2018

The latest version of this topic can be found at custom (C++).

Defines metadata for an object in the type library.

Syntax

  
      [ custom(  
   uuid,   
   value  
) ];

Parameters

uuid
A unique ID.

value
A value that can be put into a variant.

Remarks

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.

Requirements

Attribute Context

Applies to	Non-COM `interface`, class, `enum`s, `idl_module` methods, interface members, interface parameters, `typedef`s, unions, `struct`s
Repeatable	Yes
Required attributes	coclass (when used on class)
Invalid attributes	None

For more information about the attribute contexts, see Attribute Contexts.

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