diff --git a/Opencv_examples/preview.cpp b/Opencv_examples/preview.cpp
new file mode 100644
index 0000000..ca33738
--- /dev/null
+++ b/Opencv_examples/preview.cpp
@@ -0,0 +1,38 @@
+#include "opencv2/highgui/highgui.hpp"
+#include <iostream>
+
+using namespace cv;
+using namespace std;
+
+int main(int argc, char* argv[])
+{
+	VideoCapture cap(0); // open the video camera 0
+	if (!cap.isOpened()) return -1;
+
+	double dWidth = cap.get(CV_CAP_PROP_FRAME_WIDTH); 
+	double dHeight = cap.get(CV_CAP_PROP_FRAME_HEIGHT); 
+
+	cout << "Frame Size = " << dWidth << "x" << dHeight << endl;
+	Size frameSize(static_cast<int>(dWidth), static_cast<int>(dHeight));
+
+	cv::namedWindow("Preview", cv::WINDOW_AUTOSIZE);
+
+	while (1) {
+		Mat frame;
+
+		bool bSuccess = cap.read(frame); // read a new frame from video
+		if (!bSuccess) {
+			cout << "ERROR: Cannot read a frame from video file" << endl;
+			break;
+		}
+
+		imshow("Preview", frame);
+
+		if (cv::waitKey(1) == 27) {
+			break;
+		}
+	}
+
+	return 0;
+}
+