Thanks for your question! This feature is only available on a few phones, TVs, home theaters, and Blu-ray players. I don't believe it's even available on Samsung laptops just yet. I won't rule this out as a future possibility, but at this time, it's not possible to use Allshare Cast in this manner.
I have a Samung Allshare Cast that I use to watch films from my Galaxy s3 on my TV. Is there a way to connect a PC to the allshare cast?
I have installed the 'Allshare' software on my PC but it doesn't pick it up. I do not fully understand how the dongle connects to my S3 but I assume it uses WIFI direct.
Any help would be much appreciated.