~~Title: OnOpenTab ~~
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The **On** event can be implemented by a [[:scripting:script_add-ins|script add-in]] to receive notification when a new tab opens.


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$$ (#)**Method Name:**
$$ OnOpenTab
$$ (#)**Argument Type:**
$$ **[[..:scripting_objects:opentabdata|OpenTabData]]** 
$$ (#)**Return Type:**
$$ //none//
$$ (#)**Description:**
$$ The **OpenTabData.tab** property identifies the newly opened tab. Note that this method is not called when a new Lister is opened, irrespective of how many tabs it contains - instead, you can identify all the tabs in the newly opened Lister by implementing the **OnOpenLister** event.
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