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[propput]HRESULT FirstEvent(VARIANT* pEvent);
.h:

class CCtrl : public ICtrl
{
  __stdcall HRESULT
put_FirstEvent(VARIANT* pEvent);
  CComQIPtr <IDispatch>
m_spEvent;
  void Fire_FirstEvent(VARIANT sType, VARIANT Msg);
}

.cpp:
HRESULT __stdcall CCtrl::put_FirstEvent(VARIANT*
pEvent)
{
  assert(pEvent->vt == VT_DISPATCH);
 
m_spEvent = V_DISPATCH(pEvent);
  return S_OK;
}
void
CCtrl::Fire_FirstEvent(VARIANT sType, VARIANT Msg)
{
  if
(m_spEvent)
  {
    CComVariant args[2] = {sType, Msg};
   
DISPPARAMS dp = {args, NULL, 2, 0};
    m_spEvent->Invoke(0,
IID_NULL, LOCALE_USE_DEFAULT, DISPATCH_METHOD, &dp, NULL, NULL,
NULL);
  }
}
³É¹¦ÊµÀý:
IDL²¿·Ö:
 [propget, id(2), helpstring("ÊôÐÔ OnShowText")]
HRESULT OnShowText([out, retval] IDispatchEx** pVal);
 [propput,
id(2), helpstring("ÊôÐÔ OnShowText")] HRESULT OnShowText([in] IDispatchEx*
newVal);
JS²¿·Ö:
function
 CreateATL()
{
    
this
.vv 
=
 
"
ok
"
;
    m 
=
 
new
 ActiveXObject(
"
ATLPro.AControl
"
);
    m.OnShowText 
=
 
function
()
//
OnShowText ÔÚATLÖÐÊÇÒ»¸ö IDispatchEx ¶ÔÏó
    
{