Hello to all, i need to develop an GUI window that capture video from web cam and display it to Qt main window but unfortunately it only display 1 frame image and not continuous video.

Qt Code: 
  1. OpenCVQT::OpenCVQT(QWidget *parent, Qt::WFlags flags)
  2. 	: QMainWindow(parent, flags)
  3.  
  4. {
  5.  ui.setupUi(this);
  6.  
  7.  myLabel = new QLabel("Fuckasdasd");
  8.  mainLayout = new QVBoxLayout;
  9.  
  10.  mainLayout->addWidget(myLabel);
  11.  
  12.  mainWgt = new QWidget(this);
  13.  
  14.  mainWgt->setLayout(mainLayout);
  15.  this->setCentralWidget(mainWgt);
  16.  
  17.  
  18.  camMenu = menuBar()->addMenu(tr("Web Camera"));
  19.  webCamAct = new QAction(tr("Start Web Camera"), this );
  20.  camMenu->addAction(webCamAct); 
  21.  connect(webCamAct, SIGNAL(triggered()), this, 
  22.   SLOT(WebCamSlot() ));
  23.  
  24.  myCamThread = new cameraThread();
  25.  
  26. }
  27. // =============================================
  28. OpenCVQT::~OpenCVQT()
  29. {
  30. }
  31. // =============================================
  32. QLabel*& OpenCVQT::getLabel()
  33. {
  34.  return myLabel;
  35. }
  36.  
  37. void OpenCVQT::WebCamSlot()
  38. {
  39.  myCamThread->run();
  40. }
  41.  
  42. class cameraThread : public QThread
  43. {
  44. public:
  45.  cameraThread();
  46.  ~cameraThread();
  47.  
  48.  void run();
  49.  void StreamCamera();
  50.  void ConvertImage();
  51.  void CreateQImage();
  52.  
  53. private: 
  54.  CvCapture* myCaptureHandler;
  55.  IplImage* myOriginalIplImage, *myRGBIplImage;
  56.  
  57.  QImage myQImage;
  58.  uchar* ImageData;
  59.  
  60. };
  61.  
  62. cameraThread::cameraThread()
  63.   : myCaptureHandler(), 
  64. 	myOriginalIplImage(&IplImage() ), 
  65. 	myRGBIplImage(&IplImage() ), 
  66. 	myQImage(QImage()), 
  67. 	ImageData()
  68. {
  69.  myCaptureHandler = cvCreateCameraCapture(0);
  70.  myOriginalIplImage = cvCreateImage(cvSize(320, 240), 
  71.    IPL_DEPTH_8U, 3);
  72.  
  73.  myRGBIplImage = cvCreateImage(cvSize(320,240), 
  74.   IPL_DEPTH_8U, 3 );
  75.  
  76. }
  77. // =============================================
  78. cameraThread::~cameraThread()
  79. {
  80. }
  81. // =============================================
  82. void cameraThread::run()
  83. {
  84.  StreamCamera();
  85.  exec();
  86. }
  87. // =============================================
  88. void cameraThread::StreamCamera()
  89. {
  90.  myOriginalIplImage = cvQueryFrame(myCaptureHandler);
  91.  
  92.  ConvertImage();
  93.  CreateQImage();
  94.  
  95.  //resize(myRGBIplImage->width, myRGBIplImage->height);   
  96.  (OpenCVQT::myLabel)->setPixmap(QPixmap::fromImage(myQImage)  );
  97.  
  98.  
  99. }
  100. // =============================================
  101. void cameraThread::ConvertImage()
  102. {
  103.  cvCvtColor(myOriginalIplImage, 
  104.   myRGBIplImage, CV_BGR2RGB); 
  105.  
  106.  if (!myRGBIplImage)
  107.  {
  109.   errMsg->showMessage("Error Convert Image");
  110.  }
  111.  else
  112.  {
  113.   ImageData = (uchar*) myRGBIplImage->imageData;
  114.  }
  115.  
  116. } 
  117. // =============================================
  118. void cameraThread::CreateQImage()
  119. {
  120.  myQImage = QImage(ImageData, 
  121.   myRGBIplImage->width, myRGBIplImage->height, 
  122.   myRGBIplImage->widthStep, 
  123.   QImage::Format_RGB888);
  124. }
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Qt Code: 
  1. void cameraThread::run()
  2. {
  3.  StreamCamera();
  4.  exec();
  5. }
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I need the streamCamera() to be continuous running while main window is running too.

Please help.

Thanks.