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export

Causes a data structure to be placed in the .idl file.

[export]

Attribute Context

Applies to union, typedef, enum, struct, or interface
Repeatable No
Required attributes None
Invalid attributes None

For more information, see Attribute Contexts.

Remarks

The export C++ attribute causes a data structure to be placed in the .idl file and to then be available in the type library in a binary-compatible format that makes it available for use with any language.

You cannot apply the export attribute to a class even if the class only has public members (the equivalent of a struct).

If you export unnamed enums or structs, they will be given names that begin with __unnamedx, where x is a sequential number.

Example

The following code shows how to use the export attribute:

// cpp_attr_ref_export.cpp
// compile with: /LD
[module(name=MyLibrary)];

[export]
struct MyStruct 
{
   int i;
};

For other examples, see the MantaWeb Sample and the WeatherService Sample.

See Also

Compiler Attributes | Typedef, Enum, Union, and Struct Attributes | Attributes Samples

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