#include "cv.h"
#include "highgui.h"
int g_slider_position =0;
CvCapture* g_capture = NULL;
void onTrackbarSlide(intpos){
cvSetCaptureProperty(g_capture,CV_CAP_PROP_POS_FRAMES, pos);
}
int main(int argc, char**argv){
cvNamedWindow("Example3",CV_WINDOW_AUTOSIZE);
g_capture =cvCreateFileCapture("1.avi");
intframes = (int) cvGetCaptureProperty(g_capture,CV_CAP_PROP_FRAME_COUNT);
if(frames != 0){
cvCreateTrackbar("position","Example3", &g_slider_position, frames,onTrackbarSlide);
}
IplImage* frame;
while(1){
frame =cvQueryFrame(g_capture);
if(!frame) break;
cvShowImage("Example3",frame);
char c = cvWaitKey(33);
if(c == 27) break;
}
cvReleaseCapture(&g_capture);
cvDestroyWindow("Example3");
system("pause");
return 0;
}