It can use PrefsObjects, an XML-based, object-oriented system for handling program preferences.It can turn into a “watchdog” and get notified when other applications register.But it also allows custom messages designed for an application’s particular needs in this respect the Application Library provides an alternative to ARexx control. The library supports a set of common control messages (commands) such as those telling an application to quit, iconify or bring its window to front. It can send/receive messages to/from other registered applications.Once registered, the application can make use of the library’s many features: This process is called application registration, during which the application receives a unique identifier and is added to a public list among other applications. drivers, handlers, filesystems and other background services), and genuine full-blown applications with GUI and all.ĪmigaOS alone cannot make such a distinction: it uses the Application Library as a mediator through which applications introduce themselves to the system. Nowadays it makes more sense to discriminate between programs that operate without the user even noticing (e.g.
But it can hardly make a difference on today’s hardware so the trade-offs are no longer worth it. This distinction might have been useful in the past when tasks (which require fewer resources in return for not being able to access DOS functions) could improve system performance. Before, the system only distinguished between different types of program on a very low level, seeing them as either tasks or processes. The very concept of application is a relatively recent addition to AmigaOS. The Application Library is a multipurpose auxiliary library that provides various functions related to the development and use of applications. 7 Pop-up Notifications (Ringhio Messages).1.2 Minimum Application Library Support.
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