The Humble Frozenbyte Bundle package has recently completed. Before this happened, if you tried to pay for the package by clicking the "Paypal" button, a small pop-up window appeared, asked you to enter PayPal, asked you to click "Yes, this is the correct amount for payment", and the pop-up window closes again. Fine!
I would like to do the same with my application, but I cannot figure out the correct Paypal stream to use . The standard cmd = _xclick WPS check thread spans the entire screen, so I know that it's not what the Humble Bundle puts in its popup ...
To be clear, I am not asking how to create a popup in HTML. I ask how to get access to the PayPal verification flow, which can fit into a small popup , around 400x800, if I remember correctly. If the Modest Package were still open, I would just look at the source code, of course!
Thanks in advance for any advice!
Update : PayPal digital goods is what I was looking for.
Paypal integration guide (not very good) is here: https://cms.paypal.com/cms_content/US/en_US/files/developer/PP_ExpressCheckout_IntegrationGuide_DG.pdf
And the blogpost I'm following to try to get this work is here: https://www.x.com/blogs/matt/2011/02/15/another-digital-goods-demo
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