Is there a way to delete the picture on hangouts so they cant see it? retrieve picture I wanted to recall a photo, that I sent to someone by accident. They are out of town, so I know they haven't seen it yet. Is there any way to delete the picture on hangouts so they can't see it?
Share and delete your photos from Hangouts messages and Google Voice MMS:


  You can delete photos that you sent through a Hangouts message or
  through a Google Voice multimedia message in Hangouts. You'll need to
  delete the photos from Picasa Web Albums.
  
  Even if you delete a photo in your Picasa album, if you sent it
  through a multimedia message, the person who received it may still
  have a copy of the image on their device.
  
  
  Go to Picasa Web Albums.
  Click Show All Albums. If you're using Hangouts to send Google Voice multimedia messages, make sure you're going to the Picasa
  account that is connected to the Google Voice account.
  Click the album with the photos you want to delete. For Hangouts users: The photo album's title will be the name of the person you had
  the Hangout with. For Google Voice users: The photo album's title will
  be the phone number of the person who received the photo.
  Click the photo that you want to delete.
  Click Actions > Delete this photo. If you want to delete the entire album, open the album and click Actions > Delete album.