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Pdf417 Decoder

The Pdf417 Decoder is used to enable or disable the PDF417 decoder.

Syntax

pdf417 (Decoder) <META> Syntax

<META HTTP-Equiv="scanner" content="PDF417:[parameter]">

pdf417 JavaScript Object Syntax:
By default the JavaScript Object 'scanner' will exist on the current page and can be used to interact directly with the pdf417.
To Set pdf417 parameters via JavaScript use the following syntax: scanner.Parameter = Value;

e.g. scanner.pdf417 = Value;
Pdf417 Ruby Object Syntax:
By default the Ruby Object 'Scanner' will exist on the current page and can be used to interact directly with the Pdf417.
To Set Pdf417 parameters via Ruby use the following syntax: Scanner.Parameter = Value

e.g. Scanner.pdf417 = Value

Parameters

Items listed in this section indicate parameters, or attributes which can be set.

Name Possible Values Description Default Value
pdf417:[Value] enabled/Disabled Enables/Disables the PDF417 decoder. Device specific

Requirements

RhoElements Version 1.0.0 or above
Supported Devices All supported devices.
Minimum Requirements Scanner or Imager module and device that supports PDF417.
Persistence Transient - Decoder settings are only guaranteed to persist until the Scanner is disabled

HTML/JavaScript Examples

The following example enables the scanner to read only PDF417 labels:

<META HTTP-Equiv="scanner" Content="allDecoders:disabled">
<META HTTP-Equiv="scanner" Content="PDF417:enabled">
<META HTTP-Equiv="scanner" Content="enabled">

Above example can also be written as shown below:

<META HTTP-Equiv="scanner" Content="allDecoders:disabled;PDF417:enabled;enabled">

or

<META HTTP-Equiv="scanner-all_decoders" Content="disabled">
<META HTTP-Equiv="scanner-PDF417" Content="enabled">
<META HTTP-Equiv="scanner-enabled" Content="SCN1">

The following example enables the scanner to read all labels except PDF417:

<META HTTP-Equiv="scanner" Content="allDecoders:enabled">
<META HTTP-Equiv="scanner" Content="PDF417:disabled">
<META HTTP-Equiv="scanner" Content="enabled">
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