Overview
The QrCode Decoder is used to enable or disable the Qrcode decoder.
Syntax
| qrCode (Decoder) <META> Syntax |
|---|
<META HTTP-Equiv="scanner" content="Qrcode:[parameter]"> |
| qrCode JavaScript Object Syntax: |
|---|
| By default the JavaScript Object 'scanner' will exist on the current page and can be used to interact directly with the qrCode. |
|
To Set qrCode parameters via JavaScript use the following syntax: scanner.Parameter = Value;
e.g. scanner.qrCode = Value; |
Parameters
Items listed in this section indicate parameters, or attributes which can be set.
| Name | Possible Values | Description | Default Value |
|---|---|---|---|
| qrCode:[Value] | enabled/Disabled | Enables/Disables the Qrcode 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 Qrcode. |
| 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 Qrcode labels:
<META HTTP-Equiv="scanner" Content="allDecoders:disabled">
<META HTTP-Equiv="scanner" Content="Qrcode:enabled">
<META HTTP-Equiv="scanner" Content="enabled">
Above example can also be written as shown below:
<META HTTP-Equiv="scanner" Content="allDecoders:disabled;Qrcode:enabled;enabled">
or
<META HTTP-Equiv="scanner-all_decoders" Content="disabled">
<META HTTP-Equiv="scanner-Qrcode" Content="enabled">
<META HTTP-Equiv="scanner-enabled" Content="SCN1">
The following example enables the scanner to read all labels except Qrcode:
<META HTTP-Equiv="scanner" Content="allDecoders:enabled">
<META HTTP-Equiv="scanner" Content="Qrcode:disabled">
<META HTTP-Equiv="scanner" Content="enabled">