duck.idl

这是一个ATL的例子

// File: duck.idl
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Classes Reference and related electronic
// documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft C++ Libraries products.

import  "oaidl.idl";
// duck.idl : IDL source for duck.dll
//

// This file will be processed by the MIDL tool to
// produce the type library (duck.tlb) and marshalling code.

	[
	
		uuid(120B72AE-65BF-11D0-9DDC-00A0C9034892),
	
		helpstring("IDuckInt Interface"),
		pointer_default(unique)
	]
	interface IDuckInt : IUnknown
	{
		[helpstring("method Quack")] HRESULT Quack(BSTR szWhosCalling);
		[helpstring("method Flap")] HRESULT Flap(BSTR szWhosCalling);
		[helpstring("method Paddle")] HRESULT Paddle(BSTR szWhosCalling);
		[helpstring("method Walk")] HRESULT Walk(BSTR szWhosCalling);
	};
[
	uuid(120B72A2-65BF-11D0-9DDC-00A0C9034892),
	version(1.0),
	helpstring("duck 1.0 Type Library")
]
library DUCKLib
{
	importlib("stdole32.tlb");

	[
		uuid(120B72AF-65BF-11D0-9DDC-00A0C9034892),
		helpstring("DuckInt Class")
	]
	coclass DuckInt
	{
		[default] interface IDuckInt;
	};
};