source: trunk/DirectShowSpy/CoCreateFilterGraphInstance/CoCreateFilterGraphInstance.cpp @ 95

////////////////////////////////////////////////////////////
// Copyright (C) Roman Ryltsov, 2008-2009
// Created by Roman Ryltsov roman@alax.info
// 
// $Id: CoCreateFilterGraphInstance.cpp 95 2012-08-17 17:21:13Z roman $

#include "stdafx.h"
#include <dshow.h>
#include <qedit.h>

#pragma comment (lib, "strmiids.lib")

int _tmain(int argc, _TCHAR* argv[])
{
        _ATLTRY
        {
                ATLENSURE_SUCCEEDED(CoInitialize(NULL));
                _ATLTRY
                {
                        MessageBox(NULL, _T("Before CoCreateInstance"), _T("Debug"), MB_OK);
                        CComPtr<IFilterGraph> pFilterGraph;
                        ATLENSURE_SUCCEEDED(pFilterGraph.CoCreateInstance(CLSID_FilterGraph));
                        MessageBox(NULL, _T("After CoCreateInstance, Before AddFilter"), _T("Debug"), MB_OK);
                        CComPtr<IBaseFilter> pBaseFilter;
                        ATLENSURE_SUCCEEDED(pBaseFilter.CoCreateInstance(CLSID_SampleGrabber));
                        ATLENSURE_SUCCEEDED(pFilterGraph->AddFilter(pBaseFilter, NULL));
                        MessageBox(NULL, _T("After AddFilter"), _T("Debug"), MB_OK);
                }
                _ATLCATCHALL()
                {
                        CoUninitialize();
                        _ATLRETHROW;
                }
                CoUninitialize();
        }
        _ATLCATCH(Exception)
        {
                _tprintf(_T("Fatal Error 0x%08x\n"), (HRESULT) Exception);
        }
        _ATLCATCHALL()
        {
                _tprintf(_T("Fatal Error\n"));
        }
        return 0;
}