~~Title: OnStartup ~~
The **OnStartup** event can be implemented by a [[:scripting:script_add-ins|script add-in]] to receive notification when Opus starts up.
$$ (#)**Method Name:**
$$ OnStartup
$$ (#)**Argument Type:**
$$ **[[..:scripting_objects:startupdata|StartupData]]**
$$ (#)**Return Type:**
$$ //none//
$$ (#)**Description:**
$$ This event is only triggered when Opus starts up, therefore only script add-ins that are already installed will receive it. If a script is installed when Opus is already running it won't receive **OnStartup** until the next time Opus is started.