Overview
The Upce0preamble Decoder Setting is to set the upce0-preamble property which controls the preamble applied to the bar code.
Syntax
| upce0preamble (Decoder Setting) <META> Syntax |
|---|
<META HTTP-Equiv="scanner" content="upce0preamble:[parameter]"> |
| upce0preamble JavaScript Object Syntax: |
|---|
| By default the JavaScript Object 'scanner' will exist on the current page and can be used to interact directly with the upce0preamble. |
|
To Set upce0preamble parameters via JavaScript use the following syntax: scanner.Parameter = Value;
e.g. scanner.upce0preamble = Value; |
Parameters
Items listed in this section indicate parameters, or attributes which can be set.
| Name | Possible Values | Description | Default Value |
|---|---|---|---|
| upce0preamble:[Value] | none / systemChar / countryAndSystemChars | if none Applies no preamble to the bar code.if systemChar Applies system character preamble to the bar code.if countryAndSystemChars Applies both system and country code preamble to the bar code. | 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 upce0. |
| 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 upce0 labels with the preamble property set to both system and country code preamble:
<META HTTP-Equiv="scanner" Content="upce0:enabled">
<META HTTP-Equiv="scanner" Content="upce0preamble:countryAndSystemChars">
<META HTTP-Equiv="scanner" Content="enabled">
Above example can also be written as shown below:
<META HTTP-Equiv="scanner" Content="upce0:enabled;upce0preamble:countryAndSystemChars;enabled">
or
<META HTTP-Equiv="scanner-upce0" Content="enabled">
<META HTTP-Equiv="scanner-upce0preamble" Content="countryAndSystemChars">
<META HTTP-Equiv="scanner-enabled" Content="SCN1">