Appendix E
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 302).
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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