library_block

Article
01/03/2018

The latest version of this topic can be found at library_block.

Places a construct inside the IDL library block.

Syntax

  
[library_block]

Remarks

When you place a construct inside the library block, you ensure that it will be passed into the type library, regardless of whether it is referenced. By default, only constructs modified by the coclass, dispinterface, and idl_module attributes are placed in the library block.

Example

In the following code, a custom interface is placed inside the library block.

// cpp_attr_ref_library_block.cpp  
// compile with: /LD  
#include <windows.h>  
[module
(name="MyLib")];  
[object, library_block, uuid("9E66A290-4365-11D2-A997-00C04FA37DDB")]  
__interface IMyInterface {  
   HRESULT f1();  
};

Requirements

Attribute Context

Applies to	Anywhere
Repeatable	No
Required attributes	None
Invalid attributes	None

For more information, see Attribute Contexts.

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