COM Interface Hooking and Its Application - Part I

// plus.idl : IDL source for plus.dll
//

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

import "oaidl.idl";
import "ocidl.idl";
	[
		object,
		uuid(17137C98-D54C-4C76-ADF6-7491D037F086),
	
		helpstring("ISum Interface"),
		pointer_default(unique)
	]
	interface ISum : IUnknown
	{
		[helpstring("method method1")] HRESULT method1();
		[helpstring("method method2")] HRESULT method2();
		[helpstring("method woo")] HRESULT woo();
	};

[
	uuid(C08CD14F-7E94-4392-983A-53DCEA2CF22B),
	version(1.0),
	helpstring("plus 1.0 Type Library")
]
library PLUSLib
{
	importlib("stdole32.tlb");
	importlib("stdole2.tlb");

	[
		uuid(C910B122-A6E9-498B-A662-1EA7D26AF4E2),
		helpstring("Sum Class")
	]
	coclass Sum
	{
		[default] interface ISum;
	};
};