Vision4Mac Documentation

Event Handling

Due to some limitations of the wrapper generater we are using event handling is not quite trivial, but here's what you have to do if you want to add a new event:

In the creation procedure you need to have something like this:

id := app_implementation.get_id (current)

app_implementation.install_event_handler (id, target, {carbonevents_anon_enums}.kEventClassControl, {carbonevents_anon_enums}.kEventMouseDown)

This code first gets an application-wide unique ID. The system needs this to find out which object triggered the event. Then ...