Overview
The Code39maxLength Decoder Setting is used to set the Code39 MaxLength property.
Syntax
| code39maxLength (Decoder Setting) <META> Syntax |
|---|
<META HTTP-Equiv="scanner" content="Code39maxlength:[parameter]"> |
| code39maxLength JavaScript Object Syntax: |
|---|
| By default the JavaScript Object 'scanner' will exist on the current page and can be used to interact directly with the code39maxLength. |
|
To Set code39maxLength parameters via JavaScript use the following syntax: scanner.Parameter = Value;
e.g. scanner.code39maxLength = Value; |
Parameters
Items listed in this section indicate parameters, or attributes which can be set.
| Name | Possible Values | Description | Default Value |
|---|---|---|---|
| code39maxLength:[Value] | Numeric value (0 - 55) | Numeric value setting the maximum number of characters for the Code39 structure (0 - 55). | 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 Code39. |
| 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 Code39 labels with the MaxLength property set to 30:
<META HTTP-Equiv="scanner" Content="Code39:enabled">
<META HTTP-Equiv="scanner" Content="Code39maxlength:30">
<META HTTP-Equiv="scanner" Content="enabled">
Above example can also be written as shown below:
<META HTTP-Equiv="scanner" Content="Code39:enabled;Code39maxlength:30;enabled">
or
<META HTTP-Equiv="scanner-Code39" Content="enabled">
<META HTTP-Equiv="scanner-Code39maxlength" Content="30">
<META HTTP-Equiv="scanner-enabled" Content="SCN1">