SECTION 9
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Extended Commands
VT220/ANSI Terminal Emulation Programmer’s Reference Guide 9-53
Escape Characters
The four escape characters in Table 9-23 yield a VT220
data stream key press equivalent when followed by another
character. The escape characters are:
$ (dollar sign)
% (percent)
+ (plus)
/ (forward slash)
For example:
"
If a bar code contains the sequence “%U” somewhere
within it, the wireless station converts this sequence
to an [ENTER] key and processes it as soon as encoun-
tered in the scanning buffer.
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“+B” is converted to the lower case “b.”
"
“%B” is converted to an F11 key press.
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NOTE:
If you want the Encoded Code 39 option but the bar codes to be
scanned already contain the “$,” “%,” “+,” or “/,” character, then each
place where these characters occur must be expanded to a special
“/” sequence:
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Every bar code where the “$” is maintained must be expanded
to a “/D” sequence.
"
Percent signs (%) must be expanded to “/E”.
"
Forward slashes (/) must be expanded to the letter “/O”.
"
Plus signs (+) must be expanded to “/K”.
Summary of Contents for VT220/ANSI
Page 4: ......
Page 18: ...CONTENTS xiv VT220 ANSI Terminal Emulation Programmer s Reference Guide...
Page 26: ...SECTION 1 Introduction 1 8 VT220 ANSI Terminal Emulation Programmer s Reference Guide...
Page 264: ...APPENDIX A Bar Code Scanning A 4 VT220 ANSI Terminal Emulation Programmer s Reference Guide...
Page 276: ...INDEX Index 12 VT220 ANSI Terminal Emulation Programmer s Reference Guide...