GetVersion(Int32@,Int32@,Int32@,Int32@)
Returns the version number of the Genvid library, storing the major, minor,
version, and build values at the specified addresses.
A NULL pointer will simply ignore that value.
Returns the version number as a string value.
Parameters
- major : ref int : Major revision number. 
- minor : ref int : Minor revision number. 
- version : ref int : Version number. 
- build : ref int : Build version number. 
Return
string : A string representation of the full version number.
