Question regarding Calendar w/xml

[xpat69]

I haven't programmed anything in the longest time, and I worked with c++, so I hope some people will be able to guide me in some resources to look at; what I want to do is incorporate some calendar functionality in a DirectX based game. The game creators allow players to modify their UI which is XML based. So my question(s) is/are:

 

1) Are there a functions already available to work with a database that stores calendar information?

2) Where can I start researching this information?

3) Is there already a schema I can work with or will I need to create one?

4) How hard would something like this be, considering a guide is already provided via the game creators for restructuring their UI?

5) Did I post in the wrong forum or wrong site? :eek:

6) Is it even worth my time to pursue this?

 

Thanks