The System Macro
Macros that contain "Event Handlers" (such as the PSL_OnCheckString function) are referred to as system macros.
Unlike normal macros, which are called and processed by the scripting engine and then terminated, the system macro is active as long as Passolo is running. When certain events occur Passolo calls the related event handlers in the system macro. You can change or extend the functionality of Passolo by implementing event handlers.
There can only be one system macro active at a time - the active system macro is marked with the icon. To activate a system macro, select it in the list and click on Set system macro.
To start or stop the active system macro or activate a different system macro, right-click the icon in the bottom right corner.
For further information about system macros, please refer to the Passolo Automation Concepts chapter in the Automation Help.