Intermec Janus 2020 Reference Manual - Virtual Wedge

JANUS PSK for Ada Reference Manual

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Virtual Wedge

The Virtual Wedge feature of the reader allows application programs to

receive decoded bar codes from the keyboard buffer. The Virtual Wedge

makes the reader functionally equivalent to a reader wedge connected to a

PC. Bar code input is inserted into the PC keyboard buffer as if entered from

the keypad. The Virtual Wedge also allows rapid porting of PC applications

to the reader.

Note:

 If your PC application follows DOS programming conventions, it should

run correctly on the JANUS reader. Not all programming languages, especially

database languages, follow these conventions. If your PC application does not

follow DOS programming conventions, your scanned input will be incorrect.

Valid configuration commands and reader commands are not put into the

keyboard buffer. Bar code configuration commands beginning with $+ are

tagged as configuration commands by the Virtual Wedge and sent to the

configuration manager to reconfigure the reader. The command parser in

the Virtual Wedge software recognizes and processes reader commands.

You can run applications that use the Virtual Wedge (instead of Intermec

interrupt extensions or function libraries) on either the reader or on your

PC.