nlscan.com
Page 30
Appendices
NQuire control
Introduction
The NQuire is controlled by means of ESC commands in order to configure:
- Cursor control.
- Clear display.
- Text alignment.
- Remotely putting the NQuire LCD screen and scanner in "Sleep mode" and
"Wake up" again.
- Controlling the touch screen (only on NQuire 23x models)
C. NQuire control
Text
The NQuire uses proportional font widths. This means a "m" is physically wider
than a "i". Consequently, you can not exactly measure how many characters fit on
one line. When a line is "too long", some characters will not fit on the screen and
will not be shown. Twenty characters per line can be shown on average.
ASCII values from 20 - 255 which are not part of a command
are normally displayed on the screen.
The following commands control the position and control of text:
- Carriage return (go to next line): ESC 0x0d
- Linefeed (go to start position next line): ESC 0x0a
- Set cursor (for predefined cursor postions): ESC 0x2c
- Set pixel position (placing the cusror on any position): ESC 0x2C
- Align text (easy alignment, such as center of screen, right of screen): ESC 0x2e
The complete command set table is on page 30.
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