How to use the Paypal Dialog?

I want to know how I开发者_开发技巧 can get this Paypal Dialog? Or if it's exclusive to Facebook… ?

Thanks for your help.

That's PayPal Digital Goods for Express Checkout or Digital Goods for Adaptive Payments.
In essence, it's a pretty layer on top of an existing Express Checkout or Adaptive Payments integration meant for digital goods sales only.

PayPal has info about Digital Goods up on https://www.paypal.com/digitalgoods/ as well as https://www.x.com/developers/paypal/use-cases/digital-goods