C++ (Cpp) CaptureVideo Examples

Example #1

File: dxcapture.cpp Project: Hyunguk-Choi/ICTdeepview2_client

// DirectX Show 초기화, 인터페이스 생성
bool cDxCapture::Init(const int cameraIndex, const int width, const int height, const bool isThreadMode)
{
	// Initialize COM
	if (FAILED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED)))
	{
		Msg(TEXT("CoInitialize Failed!\r\n"));
		exit(1);
	}

	m_cameraIndex = cameraIndex;
	m_width = width;
	m_height = height;

	// Create DirectShow graph and start capturing video
	HRESULT hr;
	hr = CaptureVideo(cameraIndex);
	if (FAILED(hr))
		return false;

	m_isThreadMode = isThreadMode;

	if (isThreadMode)
	{
		m_handle = (HANDLE)_beginthreadex(NULL, 0, DxCaptureThreadFunction, this, 0, (unsigned*)&m_threadId);
	}

	return true;
}

Example #2

File: playcap.cpp Project: Essjay1/Windows-classic-samples

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hInstP, LPSTR lpCmdLine, int nCmdShow)
{
    MSG msg={0};
    WNDCLASS wc;

    // Initialize COM
    if(FAILED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED)))
    {
        Msg(TEXT("CoInitialize Failed!\r\n"));   
        exit(1);
    } 

    // Register the window class
    ZeroMemory(&wc, sizeof wc);
    wc.lpfnWndProc   = WndMainProc;
    wc.hInstance     = hInstance;
    wc.lpszClassName = CLASSNAME;
    wc.lpszMenuName  = NULL;
    wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
    wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wc.hIcon         = NULL;
    if(!RegisterClass(&wc))
    {
        Msg(TEXT("RegisterClass Failed! Error=0x%x\r\n"), GetLastError());
        CoUninitialize();
        exit(1);
    }

    // Create the main window.  The WS_CLIPCHILDREN style is required.
    ghApp = CreateWindow(CLASSNAME, APPLICATIONNAME,
                         WS_OVERLAPPEDWINDOW | WS_CAPTION | WS_CLIPCHILDREN,
                         CW_USEDEFAULT, CW_USEDEFAULT,
                         DEFAULT_VIDEO_WIDTH, DEFAULT_VIDEO_HEIGHT,
                         0, 0, hInstance, 0);

    if(ghApp)
    {
        HRESULT hr;

        // Create DirectShow graph and start capturing video
        hr = CaptureVideo();
        if (FAILED (hr))
        {
            CloseInterfaces();
            DestroyWindow(ghApp);
        }
        else
        {
            // Don't display the main window until the DirectShow
            // preview graph has been created.  Once video data is
            // being received and processed, the window will appear
            // and immediately have useful video data to display.
            // Otherwise, it will be black until video data arrives.
            ShowWindow(ghApp, nCmdShow);
        }       

        // Main message loop
        while(GetMessage(&msg,NULL,0,0))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    // Release COM
    CoUninitialize();

    return (int) msg.wParam;
}