28.07.2013 Views

JANUS? 2020 Hand-Held Computer (4MB) - Intermec

JANUS? 2020 Hand-Held Computer (4MB) - Intermec

JANUS? 2020 Hand-Held Computer (4MB) - Intermec

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

nugget<br />

nuggetTYTR TYTRLeaning How to Use the Reader<br />

2<br />

Using Text or Graphics Mode<br />

You can use Text mode or Graphics mode on the reader. By default, the reader<br />

uses Text mode and you can set the display size to 25 x 80, 16 x 20, 8 x 20,<br />

16 x 10, and 8 x 10. If your application only recognizes DOS mode, you must<br />

use a display size of 25 x 80 or 25 x 40. The other display sizes are not DOS<br />

standard and are for use with custom applications. You can program<br />

applications to use blinking and reverse video characters in Text mode.<br />

To use Graphics mode, your application needs to set Graphics mode when you<br />

start the application on the reader. As you exit the application, set Text mode<br />

again before returning to the DOS prompt. When the reader is set to use<br />

Graphics mode, you see a 128 x 160 pixel display size. You can use the reader’s<br />

CGA display as a viewport to move around and see a 200 x 640 pixel virtual<br />

display. In Graphics mode, you automatically use the reader’s virtual display<br />

(PC-size screen).<br />

For help on programming the reader or setting Graphics mode, see your<br />

<strong>JANUS</strong> PSK reference manual.<br />

Using the Display As a Viewport<br />

You can see one section of a PC-size screen on the reader’s smaller display for<br />

applications that need to be PC compatible. You will only see 16 lines and 20<br />

characters of data at one time. However, you can use the reader’s display as a<br />

viewport to move around and see the entire screen. By moving the viewport,<br />

you use the reader’s virtual display of 25 lines by 80 characters—the same size<br />

as a PC screen.<br />

In the reader’s default configuration, the display size is configured for 25 x 80.<br />

The first time you turn the reader on, it displays the upper left corner of the<br />

virtual display. This is the viewport’s home position. Any line of data that is<br />

longer than 20 characters is in the unseen area of the virtual display. You move<br />

the viewport to see each part of the virtual display.<br />

When you move the viewport out of the home<br />

position (upper left corner), the Viewport icon<br />

displays until the viewport is returned to its<br />

home position.<br />

<strong>2020</strong>U.137<br />

Note: To use the display as a viewport, you must configure the reader display size to<br />

25 x 80. For help, see “Display Setup” in Chapter 12.<br />

2-23

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!