idleAdd
Adds a function to be called whenever there are no higher priority events pending.
If the function returns const@GLib.SOURCE_REMOVE or false it is automatically removed from the list of event sources and will not be called again.
See main-loop.html#memory-management-of-sources for details on how to handle the return value and memory management of @data.
This internally creates a main loop source using func@GLib.idle_source_new and attaches it to the global struct@GLib.MainContext using method@GLib.Source.attach, so the callback will be invoked in whichever thread is running that main context. You can do these steps manually if you need greater control or to use a custom main context.
Return
the ID (greater than 0) of the event source.
Parameters
the priority of the idle source. Typically this will be in the range between const@GLib.PRIORITY_DEFAULT_IDLE and const@GLib.PRIORITY_HIGH_IDLE.
function to call