I have a general question about all the functions used in VB games. Say yer using SetCursorPos - You type:

SetCursorPos 10,27

No problem, right? Ok then sometimes I see something like this:

retval = SetCursorPos(10,27)

Then you have some kind of return value coming back at ya. So, what kinda value do these functions return and what are they used for!?