addkbint() 
     addtimerint() 
     addvblankint() 
     elapsedtime() 
     getkey() 
     getlanguageselection() 
     querykeys() 
     readjoyport() 
     remkbint() 
     remtimerint() 
     remvblankint() 
     setjoyportattrsa() 
     starttimerint() 
     stoptimerint() 
     systemcontrola()