Re: ICallFrameEvents

From:

bejoy <bejoy.joseph@gmail.com>

Newsgroups:

microsoft.public.vc.atl

Date:

Tue, 2 Sep 2008 05:37:39 -0700 (PDT)

Message-ID:

<523b0836-f5ab-4339-9beb-249765277244@r15g2000prh.googlegroups.com>

The call to CoGetInterceptor API gives the error - system cannot find
the file specified.
Am i going the correct way or is there anything more to be added

#include <windows.h>

#include <atlbase.h>
CComModule _Module;
#include <atlcom.h>
#include <oaidl.h>
#include <callobj.h>
#include <objbase.h>

#include "..\\IntIntercept\\IntIntercept.h"
#include "..\\IntIntercept\\IntIntercept_i.c"

template<class T>
class InterceptCallHandler : public CComObjectRoot,public
ICallFrameEvents
{
public:

  BEGIN_COM_MAP(InterceptCallHandler)
    COM_INTERFACE_ENTRY(ICallFrameEvents)
  END_COM_MAP()

  void init(CComPtr<T> spnterface)
  {
    m_spnterface= spnterface;
  }

  STDMETHOD(OnCall)(ICallFrame* pFrame)
  {
    LPWSTR itf, method;
    HRESULT hr = pFrame->GetNames(&itf, &method);
    hr = pFrame->Invoke(m_spnterface.p);
    CoTaskMemFree(itf);
    CoTaskMemFree(method);
    return hr;
  }

private:
  CComPtr<T> m_spnterface;
};

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpCmdLine,
                     int nCmdShow)
{
   CoInitialize( NULL);
   HRESULT hr ;
   {
    CComPtr<ICallInterceptor> spICallInterceptor;
    hr = CoGetInterceptor(__uuidof(IMathBasics), 0,
__uuidof(ICallInterceptor),reinterpret_cast<void**>(&spICallInterceptor));

    CComObject<InterceptCallHandler<IMathBasics> >* pHandler;
    CComObject<InterceptCallHandler<IMathBasics>

::CreateInstance(&pHandler);

hr = spICallInterceptor->RegisterSink(pHandler);

    CComPtr<IMathBasics> spMathBasics ;
    hr =
CoCreateInstance(CLSID_MathBasics,NULL,CLSCTX_ALL,IID_IMathBasics,
reinterpret_cast<void**>(&spMathBasics));
    pHandler->init(spMathBasics);
    IMathBasics* pMathBasicsDummy = NULL;
    hr = spICallInterceptor.QueryInterface(&pMathBasicsDummy);
    long result;
    hr = pMathBasicsDummy->Add(1,2,&result);
    hr = pMathBasicsDummy->Subtract(4,3,&result);
    pMathBasicsDummy->Release();
   }//smart pointer release before couninitialize

  CoUninitialize();
  return 0;
}

Thanks in advance
Bejoy