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4.12.1 WebApplock Special Meta-tags
General Meta-Tag Comments
A meta-tag is a special HTML tag that is used to store information about a Web page
but is not displayed in a Web browser. For example, meta tags provide information
such as what program was used to create the page, a description of the page, and
keywords that are relevant to the page.
As per the HTML specification, all meta-tags must be contained within a <head> …
</head> tag set.
Also, the head tag set must be complete within the first 15K of the web page.
The Datalogic WebAppLock defines some special meta-tags that allows the web
application to interact with the device:
In particular, the special meta-tags allow to:
- enable/disable the scan engine triggers
- enable/disable specific codes groups in the scan engine
- easily handle the keys pressing
The trigger, decoding and DL_Keys meta tags stay in scope beyond the page they
are defined in until a later page changes them.
Trigger Meta-tag
DL_Triggers – “Enable” or “Disable” all triggers
If the page contains this tag, the triggers are enable or disable depending on the
“content=” value.
Example:
<meta http-equiv="DL_Triggers" content="Disable">
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