Why am I having problems using QuickAddress User Interface Products with Wyse60 Terminals?

Why am I having problems using QuickAddress User Interface Products with Wyse60 Terminals?

When using QuickAddress User Interface Products with Wyse60 Terminals you may experience some problems trying to select elements from the picklist.

The keyboard on a Wyse60 generates ASCII 10 (Hex 0A, a linefeed [LF] / newline [NL]) when you press the Down arrow, and it generates ASCII 13 (Hex 0D, a carriage-return - CR) when you press Return. However, most UNIX programs and shells expect the terminal to send an NL to indicate a new line. Therefore, the UNIX terminal driver has a setting to turn all CR’s it receives from any terminal into NL’s before passing it to the software.

Due to this setting a program cannot tell the difference between the return key (which generates a CR which is converted to an NL) or the Down arrow (which just generates an NL) and subsequently it can become difficult to browse through the application and the picklist.

Solution

There are two short keys that can be used to move up and down the picklist and therefore they can be used as the up and down keys.

An alternative solution could be to change the settings of your terminal to deactivate the conversion of CR to NL and interpret a ^M (CR) as a return.