Method StartSample

Samples/NiUserSelection/SampleManager.cpp:46–82

XnStatus SampleManager::StartSample(int argc, char **argv)
{
    // first we create a UserTracker object. This initializes all the openNI portions...
    m_pUserTracker = XN_NEW(UserTracker,argc,argv,3000000); 

    // make sure the initialization was a success
    if(m_pUserTracker->Valid()==FALSE) 
    {
        RETURN_WITH_CLEANUP(XN_STATUS_ERROR, "User tracker invalid"); 
    }

    // set the user selector and tracking initializers. This is the main method overriden by 
    // inheriting classes.
    if(SetSelectors()!=XN_STATUS_OK)
    {
        RETURN_WITH_CLEANUP(XN_STATUS_ERROR, "Failed to initialize user selector and tracking initializers"); 
    }

    // test if we show low confidence joints (if this is true we show low confidence joints as
    // dotted lines (confidence 0.5) or dashed lines (confidence lower than 0.5). If false we just
    // do not draw low confidence joints.
    XnBool bShowLowConfidence = FALSE;
    for(int i=1; i<argc; i++)
    {
        if(xnOSStrCmp(argv[i] , "-ShowLowConfidence") == 0)
        {
            bShowLowConfidence = TRUE;
        }
    }
    // start the actual running (handled by the scene drawer).
    // note pUserTracker is deleted inside DrawScene when quitting.
    SceneDrawer *singleton=SceneDrawer::GetInstance();
    // This starts the actual program. NOTE: the DrawScene method never ends except for
    // using the exit call to end the program. 
    singleton->DrawScene(m_pUserTracker,argc,argv,this, bShowLowConfidence);
    return XN_STATUS_OK; 
}

void SampleManager::Cleanup()
{