求一个用到笔记本摄像头显示的程序代码

求一个用到笔记本摄像头显示的程序代码，要C或c++的，不需太难，越简单越好，只要用到摄像头

参考：http://blog.sina.com.cn/s/blog_6b7c56870100l22u.html

Camera01 用MFC编写的一个笔记本摄像头开启程序,可以打开摄像头,并在MFC对话框中显示.

 #include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>

using namespace cv;


int main()
{
    VideoCapture cap(0);
    if(!cap.isOpened())
    {
        return -1;
    }
    Mat frame;
    Mat edges;

    bool stop = false;
    while(!stop)
    {
        cap>>frame;
        cvtColor(frame, edges, CV_BGR2GRAY);
        GaussianBlur(edges, edges, Size(7,7), 1.5, 1.5);
        //Canny(edges, edges, 0, 30, 3);
        imshow("当前视频",edges);
        if(waitKey(30) >=0)
            stop = true;
    }
    return 0;
}

上面代码没有粘贴好

  #include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>

using namespace cv;


int main()
{
    VideoCapture cap(0);
    if(!cap.isOpened())
    {
        return -1;
    }
    Mat frame;
    Mat edges;

    bool stop = false;
    while(!stop)
    {
        cap>>frame;

        imshow("当前视频",frame);
        if(waitKey(30) >=0)
            stop = true;
    }
    return 0;
}