Product Reference Guide 293
Appendix A
Scancode Tables
Control Character Emulation
Control character emulation selects from different scancode tables as listed
in this appendix. Each of the control character sets below are detailed by
interface type in the tables. These apply to Wedge and USB Keyboard
platforms.
Control Character 00 :
Characters from 00 to 0x1F are sent as control character
Ctrl+Keys, special keys are located from 0x80 to 0xA1.
Control Character 01 :
Characters from 00 to 0x1F are sent as control character
Ctrl+Capital Key, special keys are located from 0x80 to 0xA1.
Control Character 02 :
Special keys are located from 00 to 0x1F and characters
from 0x80 to 0xFE are intended as an extended ASCII table (Microsoft
Windows Codepage 1252 — see page 301).
Single Press and Release Keys
In the following tables, Ar↓ means Alt right pressed and Ar↑ means Alt right
released and so on. Definitions for other keys are Al (Alt left ), Cr (Control
right ) Cl (Control left ) Sh (Shift). This method can be used for combining
Alt, Control or Shift with other keys.
Example
Consider a Control character set to 00. If AltRight+A is required before
sending a label to the host, it could be done by setting three Prefix keys in
this way: 0x99 0x41 0x9A.
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