TApplication.NotifyIdleHandler procedure
Signals all idle handlers for the application.
Declaration
procedure NotifyIdleHandler(var Done: Boolean)Arguments
Done | True when all handlers are done, meaning: wait for the next message. |
Description
NotifyIdleHandler is a method used to signal event handlers using
the
ahtIdle application handler type.
The internal array of handlers is checked for a TMethodList which
uses the application handler type. If it exists, each of the methods in the
list are signalled, in reverse order, using the value in Done as a
control flag. While Done is True, the handlers are continuously called
in the loop. If any handler in the list sets Done to False, the method
is exited.
NotifyIdleHandler is called from the Idle method. It occurs after
the ReleaseComponents and ProcessAsyncCallQueue methods
have been called. It is also called after the OnIdle event handler
in the TApplication has been signalled (when assigned) and when the Done
argument to the event handler is True.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.