Getting transaction data via HUD?

Is it possible via a HUD or other object to know if someone/something sends money to the user wearing the HUD or object?

Say that you got a tip jar. The tip jar passes some money on to the owner. The HUD/object I want to create will try to pick up the transaction data the owner receives. Amount and what object it's sent from.

If this doesn't work. Are there other ways?

Not automatically no.
The tip jar would need to be specifically written to do so. It could either say/shout the information of a channel which would only work if you are in sim, or if it knew the Key of the HUD object it could email it. However since keys change when objects are rerezzed you would also need to track the tip jar's key so that you could reregister your HUD each time it rerezzed.

The idea is to generally provide the user with an overview of received cash. So I will not have access to these objects since they will be 3rd party.

Then no I'm afraid not in the way you are expecting. There is a scripted solution for looking at the transaction history wich my be of interest to you but its not just a script as it relies upon an external server to preprocess the data.

Thanks. That's actually better suited for my project. I came over a link on that site that grabs information from the transaction history. Thanks a lot