Understanding ENS › Actions › Invoking Actions › IPC Data Passing

IPC Data Passing

For the IPC data passing method, if a dispatch is created for an action, all events from all filters which specify that action will be passed to the running action. If separate instances of the action are required for each filter, then you must create different actions in the configuration database with different names, but which call the same image name in the command attribute.

Note: If you select any of the individual parameters to pass to action as well as the IPC method, then these parameters will be passed to the action routine on the command line for only the first event delivered to the action. For example, the eventlist action routine expects the display information to be on the command line, and so has the userdata toggle button set. The userdata contains the display information for eventlist. See Chapter 14, “Supplied Action Routines,” for more information.