#include "opencv2/highgui/highgui.hpp"

#include <iostream>

using namespace cv;

using namespace std;

int main(int argc, char* argv[])

{

    VideoCapture cap(); // open the video camera no. 0

    if (!cap.isOpened())  // if not success, exit program

    {

        cout << "Cannot open the video cam" << endl;

        return -;

    }

   double dWidth = cap.get(CV_CAP_PROP_FRAME_WIDTH); //get the width of frames of the video

   double dHeight = cap.get(CV_CAP_PROP_FRAME_HEIGHT); //get the height of frames of the video

    cout << "Frame size : " << dWidth << " x " << dHeight << endl;

    namedWindow("MyVideo",CV_WINDOW_AUTOSIZE); //create a window called "MyVideo"

    while ()

    {

        Mat frame;

        //bool bSuccess = cap.read(frame); // read a new frame from video

        // if (!bSuccess) //if not success, break loop

        //{

        //     cout << "Cannot read a frame from video stream" << endl;

        //     break;

        //}

        cap>>frame;

        imshow("MyVideo", frame); //show the frame in "MyVideo" window

        if (waitKey() == ) //wait for 'esc' key press for 30ms. If 'esc' key is pressed, break loop

       {

            cout << "esc key is pressed by user" << endl;

            break;

       }

    }

    return ;

}