how to pause a video file played using videosourceplayer

问题

I am playing a videofile(.wmv)using videosourceplayer .I am able to stop videoplayer but when i start it ,it starts from the beginning but not from the current frame.How can i achieve the pause and resume playback of the video

来源：https://stackoverflow.com/questions/27738369/how-to-pause-a-video-file-played-using-videosourceplayer