A Complete ActiveX Web Control Tutorial

// MyActiveX.idl : type library source for ActiveX Control project.

// This file will be processed by the MIDL compiler tool to
// produce the type library (MyActiveX.tlb) that will become a resource in
// MyActiveX.ocx.

#include <olectl.h>
#include <idispids.h>

[ uuid(CBE9E0B0-95DB-4495-8BE8-E4CB416EF07D), version(1.0),
  helpfile("MyActiveX.hlp"),
  helpstring("MyActiveX ActiveX Control module"),
  control ]
library MyActiveXLib
{
	importlib(STDOLE_TLB);

	//  Primary dispatch interface for CMyActiveXCtrl

	[ uuid(98AF8A06-7DFE-472D-A713-A0C6F22FDC3D),
	  helpstring("Dispatch interface for MyActiveX Control")]
	dispinterface _DMyActiveX
	{
		properties:
			[id(1) , helpstring("property InputParameter")] BSTR InputParameter;
			[id(2) , helpstring("property OutputParameter")] BSTR OutputParameter;
	methods:
		[id(3), helpstring("method LoadParameter")] void LoadParameter(void);
	};

	//  Event dispatch interface for CMyActiveXCtrl

	[ uuid(78099343-A8FF-4867-A537-06F31034F22B),
	  helpstring("Event interface for MyActiveX Control") ]
	dispinterface _DMyActiveXEvents
	{
		properties:
			//  Event interface has no properties

		methods:
			[id(1)] void ParameterLoaded(void);
	};

	//  Class information for CMyActiveXCtrl

	[ uuid(36299202-09EF-4ABF-ADB9-47C599DBE778),
	  helpstring("MyActiveX Control"), control ]
	coclass MyActiveX
	{
		[default] dispinterface _DMyActiveX;
		[default, source] dispinterface _DMyActiveXEvents;
	};

};