Re: Add

From:

"Alexander Nickolov" <agnickolov@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Tue, 23 Oct 2007 09:40:22 -0700

Message-ID:

<#W0dNNZFIHA.4400@TK2MSFTNGP04.phx.gbl>

This code is meaningless. Please read about Connectable
Objects in chapter 4 of "Inside OLE" by Kraig Brockschmidt,
MS Press. Or you can read about connection points, which
is another name for the same technology, in just about any
book on ATL.

--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://vcfaq.mvps.org
=====================================

"pho" <pho@sdicgm.com> wrote in message
news:OoMgbvYFIHA.3400@TK2MSFTNGP03.phx.gbl...

I need add an event handler for a COM interface.

following is the html/javascript code:

function initLoad {
  document.getElementById('a').addEvent(handleEvent);
}

function handleEvent(text) {
  alert (text)
}

my COM implementation:

STDMETHODIMP CTestObject:addEvent(IDispatch *pVal)
{
  USES_CONVERSION;
  void (*pt2Func(BSTR);

  pt2Func = (void) (_cdecl *)(BSTR)pVal;

  pt2Func(T2OLE("test");
}

It did not work. Is the pointer to IDispatch right type to receive the
function ?