Writing my own Payment Module?

[jacobs]

Hey guys, sorry for digging this old post, but i'm stuck in the same problem... lack of documentation.

I need to create a VisaNet-VBV (Brazil) payment module but I can't find any resource for starting development.

Can anyone point me out a tutorial or a good "starting point" for developers? I found zen-cart's wiki too much empty.

[jacobs]

For those that are stuck with lack of information, I fond a small how-to on the osCommerce foruns (they seem to be much more active than zen-cart community).

forums.oscommerce.com/topic/187772-payment-module-development-how-to/

Can someone contribute with other sources of information, related to payment module dev?