veeru5656 wrote:can we post screenshot also?
@veeru5656 yes, you can do whatever you want with this "plugin"
basically, when you share something in facebook (feed story, post, etc...) you can set the url of the image before send the ajax, so that you have to save the screenshot in your server, and after that with ajax POST the url of the picture.
you can also make your own script and save in my files to work around facebook API.
for more information, read this topic: https://www.scirra.com/forum/integrate-your-app-to-facebook-last-sdk-works_t164418