Re: ATL console applcation using ActiveX control

From:
"Alexander Nickolov" <agnickolov@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Mon, 21 Aug 2006 10:12:15 -0700
Message-ID:
<uRZI0TUxGHA.1172@TK2MSFTNGP04.phx.gbl>
This looks like a perfectly normal versioned ProgID to me...
Are you confusing it with version-independent ProgIDs?

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

"Brian Muth" <bmuth@mvps.org> wrote in message
news:Oj6kfqTxGHA.4944@TK2MSFTNGP02.phx.gbl...

Looking for something like this: (not working)

#include <windows.h>
#include <atlcomcli.h>

#import "myControl.ocx" no_namespace

int main(int argc, char **argv)
{
  CComPtr<_DMyControl> com_ptr;
  HRESULT hr;

  hr = CoInitialize(0);

  if (SUCCEEDED(hr))
  {
     hr = com_ptr.CoCreateInstance(L"MyControl.MyControlCtrl.1");

     if (SUCCEEDED(hr))
        printf("Get age: %dn", com_ptr->getAge());
     else
        printf("ActiveX Error.\n");
  }
  else
     printf("COM Error.\n");
}

So what is wrong in this code?


What is the value of hr? It will tell you what's wrong.

By the way, your ProgID doesn't look right for a VB ActiveX control. I'm
guessing that it should be "MyControl.MyControlCtrl1".

Instead of using a ProgID, I prefer to use the _uuidof operator to
retrieve the GUID associated with the ocx class, as in:

hr = com_ptr.CoCreateInstance (__uuidof (DMyControl));

Note there is no leading underscore, since I want to stipulate the class,
not the interface.

HTH,

Brian

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