C / C++ / MFC

//Add video file filter
IBaseFilter *pSrcFilter = NULL;
hr = m_pGraph->AddSourceFilter(fileName, L"Source Filter", &pSrcFilter);
if (FAILED(hr))
        return -3;

//Add Sample Grabber filter
IBaseFilter* pGrabberFilter = NULL;
hr = AddSampleGrabber(&pGrabberFilter);
if (FAILED(hr)) {
        pSrcFilter->Release();
        return -4;
}

IBaseFilter* pNullFilter = NULL;
hr = AddNullRenderer(&pNullFilter);
if (FAILED(hr)) {
        pGrabberFilter->Release();
        pSrcFilter->Release();
        return -5;
}        

// Render the preview pin on the video file filter
hr = m_pCapture->RenderStream(NULL, NULL,
                                pSrcFilter, pGrabberFilter, pNullFilter);

IBaseFilter* pFilter;
hr = CoCreateInstance(CLSID_NullRenderer, NULL, CLSCTX_INPROC_SERVER,
                        IID_IBaseFilter, (void **)&pFilter);        
if (FAILED(hr))
        return hr;

*ppNullFilter = pFilter;

hr = m_pGraph->AddFilter(pFilter, L"Null Renderer");
if (FAILED(hr)) {
        pFilter->Release();                
        return hr;
}

(*ppNullFilter)->AddRef();
        pFilter->Release();

• General Graph-Building Techniques (Windows)[^]
• Find an Unconnected Pin on a Filter (Windows)[^]
• Connect Two Filters (Windows)[^]

RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, pSrcFilter, pGrabberFilter, pNullFilter);

Chesnokov Yuriy wrote:

If I set those parameters it returns 0x80070057

RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIASUBTYPE_MPEG1Video, pSrcFilter, pGrabberFilter, pNullFilter);

paul_71 wrote:

While each C++ compiler must be able to process C-code and

class CTimerTh :: CWinThread
{
	//in this class use timer function for threads
}

class CMy_Th::CTimerTh
{
	//this is my thread class where i m perforing some action
}

//use like this

ass[0] = (CMy_Th*) AfxBeginThread( RUNTIME_CLASS(CMy_Th),THREAD_PRIORITY_NORMAL, NULL,CREATE_SUSPENDED,
NULL);


//i stop the thread like this

	std::map<int, CMy_Th*>::iterator pos = ass.find(0);
	if(pos != ass.end())
	{
		if(pos->second!=NULL)
		{
			CMy_Th* pThread = pos->second;
			pThread->PostThreadMessage(WM_QUIT,NULL,NULL);
		}

		ass.erase(pos);
	}
</pre>

please me to resolve the error.

thanks in advance.

Le@rner wrote:

pThread->PostThreadMessage(WM_QUIT,NULL,NULL);

Le@rner wrote:

i m working on SDI type application ,i want to set some minimum size of application.

void CMainFrame::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI) 
{
    int min_x = ::GetSystemMetrics(SM_CXSCREEN) / 4;
    int min_y = ::GetSystemMetrics(SM_CYSCREEN) / 3;

    int cx = lpMMI->ptMinTrackSize.x;
    int cy = lpMMI->ptMinTrackSize.y;
    lpMMI->ptMinTrackSize.x = (cx < min_x) ? min_x : cx;
    lpMMI->ptMinTrackSize.y = (cy < min_y) ? min_y : cy;

    CFrameWnd::OnGetMinMaxInfo(lpMMI);
}