Metrologic IS3480-00 User Manual download pdf (Page 76)

ScanVue5® Mini Kiosk

User Manual

M37574–01T

Industrial Electronic Engineers, Inc.

23-June-2008 RevT Page 67

Appendix C—Creating a Slideshow

This section contains detailed instructions for creating a slideshow file. There are two ways to

create a slideshow. A program called Slideshow Editor and its a User’s Guide is available

on the CD-ROM. An easy way to make a slideshow without having to learn to use a new

program is to use a text editor like Windows

Notepad to create the script necessary to run

the graphics images (slides).

A slideshow is a file containing graphic images and a script (the instructions) on how these

images are to be displayed. Slideshow files reside on the network in the servers’ share

directory and are ‘pushed’ to the displays by commands in the slideshow file and stored in the

unit’s RAM memory. The slideshow is executed from within the unit.

A slideshow file consists of a sequential list of references to graphics images in the order in

which they are to be displayed, specifying the duration each image is displayed. The file

uses Token=Value pairs to define the sources of the image files. Blank lines, lines starting

with a single quote ( ‘ ) or an octothorpe ( # ) are ignored, as is white space around tokens or

the equal sign separating the token and its value.

Creating a Slideshow File

The SLIDESHOW section is a script that is interpreted by ScanVue5

as it is executed.

Slideshow entries consist of two items of information: the slide image by sequence number

and the duration the image is to be displayed in ticks where a tick=1/100 second. A FRAME

may be defined to equal a number of ticks; for example FRAME=100 makes FRAME = 1

second. Frame can be shortened to F, which can then be used as the duration (F1 = 1

second or F3 = 3 seconds)

CAUTION: DO NOT DISPLAY A FIXED IMAGE FOR LONG PERIODS OF TIME AS THIS MAY

CAUSE A PERMANENT LATENT (GHOST) IMAGE ON THE LCD. THE LCD WARRANTY DOES

NOT COVER THIS EFFECT.

This effect known as “imaging sticking” is caused by an ion charge buildup in the liquid crystal

material and is inherent to all AMLCD displays. The LCD manufacturer recommends no

longer than 5 minutes before changing the image, the purpose being to turn ‘off’ the pixels

that are ‘on’ for a period of time. This will prevent image sticking from occurring.

Using Multiple Graphics Windows

Several graphics windows can be displayed on the screen simultaneously. Multiple

window displays are specified from the slideshow file. Each window can be individually

sized, positioned on the screen and its display time and delay time to the next window

selected. Figure 18 (p64) shows the timing diagram for the example slideshow file and

the overlapping window display is shown in Figure 19.

Images used during multiple windows presentations must be sized prior to running them

in the slideshow file. It is also recommended that the same color palette be used for

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