CompositeC Decoder

RhoElements 2.x API


The CompositeC Decoder is used to enable or disable the Composite C decoder.


compositeC (Decoder) <META> Syntax

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

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

e.g. scanner.compositeC = Value;


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

NamePossible ValuesDescriptionDefault Value
compositeC:[Value] enabled/DisabledEnables/Disables the Composite C decoder.Device specific


Requirements - Code128

In order to enable compositeC barcode scanning, the code128 decoder must also be enabled.


RhoElements Version1.0.0 or above
Supported DevicesAll supported devices.
Minimum RequirementsScanner or Imager module and device that supports CompositeC.
PersistenceTransient - Decoder settings are only guaranteed to persist until the Scanner is disabled

HTML/JavaScript Examples

The following example enables the scanner to read CompositeC labels:

<META HTTP-Equiv="scanner" Content="allDecoders:disabled">
<META HTTP-Equiv="scanner" Content="code128:enabled">
<META HTTP-Equiv="scanner" Content="compositeC:enabled">
<META HTTP-Equiv="scanner" Content="enabled">

Above example can also be written as shown below:

<META HTTP-Equiv="scanner" Content="allDecoders:disabled;code128:enabled;compositeC:enabled;enabled">


function enableCompositeC()
    scanner.allDecoders = 'disabled';
    scanner.code128 = 'enabled';
    scanner.compositeC = 'enabled';