import "unknwn.idl";

[
    object,
    uuid(C1FB73D0-EC3A-4ba2-B512-8CDB9187B6D1),
    helpstring("HW Event Handler Interface"),
    pointer_default(unique)
]
interface IHWEventHandler : IUnknown
{
    HRESULT Initialize([in] LPCWSTR pszParams);
    HRESULT HandleEvent([in] const GUID guidClass, [in] LPCWSTR pszPnpID,
        [in] LPCWSTR pszPnpInstID, [in] LPCWSTR pszDeviceID,
        [in] LPCWSTR pszEventType);
};