scripting:api:script-command-handler-listener:on-before-execute-handler

Action unknown: addtobook

onBeforeExecuteHandler

Read-Write Property of type VARIANT

var Action = ScriptCommandHandlerListener.onBeforeExecuteHandler;
ScriptCommandHandlerListener.onBeforeExecuteHandler = Action;
Action = ScriptCommandHandlerListener.onBeforeExecuteHandler
ScriptCommandHandlerListener.onBeforeExecuteHandler = Action
VARIANT Action;
HRESULT hr = ScriptCommandHandlerListener.get_onBeforeExecuteHandler(&Action);
hr = ScriptCommandHandlerListener.put_onBeforeExecuteHandler(Action);