我主要是用Visual Studio 2013 使用C++來開發

...

CvCapture * capture;
IplImage * frame;

capture = cvCaptureFromCAM(0);
cvNamedWindow("WebCam");
//先要一次，取得相關設定
frame = cvQueryFrame(capture);

int frameH = cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT);
int frameW = cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH);
CvSize  sizeFrame = cvSize(frameH, frameW);

int fourcc = CV_FOURCC('M', 'J', 'P', 'G');

CvVideoWriter *  writer = NULL;
writer = cvCreateVideoWriter("Camera.avi", fourcc, 25.0, sizeFrame);

//做一個無窮迴圈
while (true){
	frame = cvQueryFrame(capture);
	cvWriteFrame(writer, frame);
	cvShowImage("WebCam", frame);

	if (cvWaitKey(1) >= 0){
		break;
	}

}

cvReleaseCapture(&capture);
cvReleaseVideoWriter(&writer);
cvDestroyWindow("Webcam");

...

我發現是會產檔沒錯，但是都只有5.XX KB。
我發現上面的Code比較像是C語言的。

C++的Code網路上有找到，是可以跑得，如下:
...

cv::VideoCapture capture(0);
if (!capture.isOpened()){
	return -1;
}
cv::Size videoSize = cv::Size((int)capture.get(CV_CAP_PROP_FRAME_WIDTH), (int)capture.get(CV_CAP_PROP_FRAME_HEIGHT));
cv::VideoWriter writer;
writer.open("VideoTest.avi", CV_FOURCC('M', 'J', 'P', 'G'), 30, videoSize);
cv::namedWindow("show image", 0);

while (true){
	cv::Mat frame;
	capture >> frame;
	if (!frame.empty()){
		writer.write(frame);
		imshow("show image", frame);
		if (cv::waitKey(33) == 27){
			break;
		}
	}
}

...

詢問一下各位前輩，是否只能改寫成C++的版本??
還是說缺少什麼元件?