[OpenCV] Camera Capture

Programmer can extract webcam image throuhg OpenCV easily. 
Following is the example code.

[code]  
    CvCapture *capture;
    IplImage *frame;
    capture =cvCaptureFromCAM(0) ;           //camera init
    cvNamedWindow("Webcam",0);               //highgui window init
    while(TRUE)
    {
        frame = cvQueryFrame(capture);       //extract from CvCapture struct
        cvShowImage("Webcam",frame);         //show frame
        if(cvWaitKey(10)>=0)              //wait for key in
        {
            break;
        }
    }
    cvReleaseCapture(&capture);
    cvDestroyWindow("Webcam");