COM

cParse::cParse()<br />
{<br />
	try<br />
	{<br />
		CoInitialize(NULL); /** 1 **/<br />
		short vi = 1;<br />
		xls.CreateInstance(__uuidof(clsXL));<br />
		xls->Visible(&vi);<br />
	} catch(_com_error &e) {<br />
		bstrDesc = e.Description();<br />
		MessageBox(NULL,_com_util::ConvertBSTRToString(bstrDesc),0,0);<br />
	}<br />
//	CoUninitialize(); /** 2 **/<br />
}<br />
<br />
cParse::~cParse()<br />
{<br />
	try<br />
	{<br />
		CoInitialize(NULL); /** 3 **/<br />
		xls->QuitAll();<br />
	} <br />
	catch(_com_error &e) {<br />
		bstrDesc = e.Description();<br />
		MessageBox(NULL,_com_util::ConvertBSTRToString(bstrDesc),0,0);<br />
	}<br />
	CoUninitialize(); /** 4 **/<br />
}

<br />
 ICaptureGraphBuilder *pBuilder;<br />
 IGraphBuilder *pGraph;<br />

<br />
BuildGraph(pBuilder,pGraph);<br />

<br />
void BuildGraph(ICaptureBuilder *pCapBuilder, IGraphBuilder *pGraphBuilder){<br />
// Create the Filter Graph Manager.<br />
CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC,<br />
    IID_IGraphBuilder, (void **)&pGraphBuilder);<br />
<br />
// Create the Capture Graph Builder.<br />
CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, <br />
    IID_ICaptureGraphBuilder2, (void **)&pCapBuilder);<br />
}<br />

<br />
hr = m_schemaCache->add(L"setup", L"Setup.xsd");<br />

<br />
//Create resource name from resource id<br />
wchar_t  sResName[10];<br />
swprintf_s(sResName, 10, L"#%d", resourceId);<br />
<br />
//Locate the resource<br />
TCHAR sRestype[13] = _T("SCHEMA");<br />
HRSRC hres = FindResource(NULL, sResName, sRestype);<br />
if (hres == 0) { <br />
	return false;<br />
}<br />
<br />
//If resource is found a handle to the resource is returned<br />
//now just load the resource<br />
HGLOBAL    hbytes = LoadResource(NULL, hres);<br />
<br />
// Lock the resource<br />
LPVOID pdata = LockResource(hbytes);<br />
<br />
//Convert the resource text file to data we can use<br />
LPBYTE sData = (LPBYTE)pdata;<br />
BSTR sXml = _bstr_t((char*) sData);	<br />
<br />
//Crate instance of DOM parser<br />
MSXML2::IXMLDOMDocument* doc;<br />
hr = CoCreateInstance(__uuidof(MSXML2::DOMDocument), NULL, CLSCTX_ALL,<br />
		__uuidof(MSXML2::IXMLDOMDocument), (void**) &doc);<br />
if (FAILED(hr))<br />
	return false;<br />
<br />
//We don't want async read<br />
doc->put_async(VARIANT_FALSE);<br />
doc->put_validateOnParse(VARIANT_TRUE);<br />
<br />
//Parse the xml schema we just loaded from our resources<br />
VARIANT_BOOL succeeded;<br />
hr = doc->loadXML(sXml, &succeeded);<br />
if (succeeded != VARIANT_TRUE) {<br />
	//Load failed<br />
	return false;<br />
}	<br />
<br />
//HERE IT FAILS!!!!!!<br />
//Add the loaded schema to the schema collection<br />
hr = m_schemaCache->add(bstrNamespace, _variant_t(doc));<br />
if ( FAILED(hr) )<br />
	return false;<br />
<br />
return true;<br />

<br />
ICreateDevEnun *pSysDevEnum<br />
IEnumMoniker *pEnumCat;<br />
IMoniker *pMoniker;<br />
IPropertyBag2 *pPropBag2;<br />
ULONG cFetched;<br />
hr = CoCreateInstance(CLSID_SystemDevEnum, NULL, CLSCTX_INPROC_SERVER,<br />
                      IID_ICreateDevEnum, (void**)(&pSysDevEnum));<br />
hr = pSysDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,<br />
                                        &pEnumCat, 0);<br />
while(pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK){<br />
      hr = pMoniker->BindToStorage(0,0,IID_IPropertyBag2,(void**)pPropBag2);<br />
<br />