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async_uuid

  • Artikel

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

[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

Applies to

interface

Repeatable

No

Required attributes

None

Invalid attributes

dual, dispinterface

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

See Also

Concepts

IDL Attributes

Interface Attributes

ATL Samples