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async_uuid

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Specifies the UUID that directs the MIDL compiler to define both synchronous and asynchronous versions of a COM interface.

Syntax

[async_uuid (uuid)]

Parameters

uuid
A UUID that identifies the version of the interface.

Remarks

The async_uuid C++ attribute has the same functionality as the async_uuid MIDL attribute.

Example

// cpp_attr_ref_async_uuid.cpp
// compile with: /LD
#include <Windows.h>
[module(name="Test")];
[object, uuid("9e66a290-4365-11d2-a997-00c04fa37ddb"),
async_uuid("e8583106-38fd-487e-912e-4fc8645c677e")]
__interface ICustom {
   HRESULT Custom([in] long l, [out, retval] long *pLong);
};

Requirements

Attribute context Value
Applies to interface
Repeatable No
Required attributes None
Invalid attributes dual, dispinterface

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

See also

IDL Attributes
Interface Attributes