async_uuid

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