Obtains the user name currently logged on the system.
Usage:
sysUserName (object me)
Parameters:
None
Returns:
(string) - the current user name
Example:
xtRose = xtra("Rosetta").new( )
strUserName = xtRose.sysUserName( )
Notes:
The function returns the user name used to launch the current director application. If the application was launched using a different login credential, then the impersonating user name is returned.