?

:):):):):):):):)
:) What is API? :)
:):):):):):):):)

[Vlatko]

API is Application Programming Interface and it actually is a load of DLL's and many functions which you can call.These functions have been made by other programmers.

or to be more formal

application programming interface (API)
A set of routines used by an application to direct the performance of procedures by a computer's operating system. For computers running a graphical user interface, an API manages an application's windows, icons, menus, and dialog boxes.

API = What VB needs to live.

Well, actually, it extends VB so that you can go other places and do more things with Windows, shapes, sizes, hiding, showing, enabling, file manipulation, etc. etc.

Without API, VB programming would be almost impossible to do.

(My opinion)