QuickBooks questions

[C# Programming]

Hi,

Please if you can advise on following questions on integration with QuickBooks.

1. I need to connect to QuickBooks database. How can I connect and retrieve data from QuickBooks?

2. What type of connection do you use to connect to database?

3. Is there some tool that makes it easier?

Please answer on any questions of this, if you have programmed with QuickBooks.

Note: I am developing in C#

Thanks in advance

John T.