Intermec VT220/ANSI, Руководство программиста

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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:
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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.”
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“%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.
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Percent signs (%) must be expanded to “/E”.
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Forward slashes (/) must be expanded to the letter “/O”.
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Plus signs (+) must be expanded to “/K”.