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Panel Applet Library Reference Manual | ![]() |
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Applets can either live in their own process ("out-of-process") or in the panel process ("in-process"). The decision to choose one or the other is done at build time, with the macro that you use to define the applet factory: PANEL_APPLET_OUT_PROCESS_FACTORY()
is used for out-of-process applets while PANEL_APPLET_IN_PROCESS_FACTORY()
is used for in-process applets. Obviously, only one of those two macros can be used.
For most practical matters, from the applet perspective, the two options are the same. In-process applets do offer a slightly better performance when the applet is loaded, but this should not affect much the user experience. However, an in-process applet can potentially affect the whole behavior of the panel, especially in case of crashes or memory corruptions: a crash in an in-process applet will crash the whole panel. It is therefore recommended to use out-of-process applets.