HP 3000 Manuals HP 3000 Manuals
Key Usage Most UNIX terminals do not send a sequence when the Alt or Ctrl key is pressed. This means that there is no way for the COBOL system to detect these keys, so instead you should use /a for Alt and /c for Ctrl. Chapter 5 , UNIX Key Usage Chart at the back of this book lists alternatives for other keys that may also be undetectable on your specific UNIX terminal. The same appendix also appears in the COBOL Operating Guide. The appendix also tells you how to select soft or hard operation for the Alt and Ctrl keys. With soft operation, the Alt or Ctrl key is automatically turned off after the next keystroke. This means that whenever you want a function from the Alt menu you must hold down Alt again to get the Alt menu displayed; and similarly with Ctrl. With hard operation, the Alt and Ctrl keys work in a similar way to the Caps Lock key, in that having been pressed they remain in effect until pressed again. For information on configuring your keyboard, see the chapter Keyboard Configuration Utility in your COBOL Operating Guide.