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 Cursor Handling Routines
 Display System
 Entry System
 Error Handling Routines
 Event System
 Expanded/Extended Memory Functions
 Format System
 General Window Handling Routines
 Help System
 INFO Routines
 Initialization Routines
 Input Routines
 Memory Functions
 Menu Functions
 National Language Support
 Near/Far Routines
 OPSYS Routines
 Printer Functions
 Selection Engine
 Selection System
 String Handling Routines
 Ultravision Support
 Utility Functions