Export (0) Print
Expand All

async_uuid

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

[async_uuid (
   uuid
)]

Parameter

uuid
A UUID that identifies the version of the interface.

Attribute Context

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

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

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);
};

See Also

IDL Attributes | Interface Attributes | Attributes Samples

Show:
© 2014 Microsoft