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LEARN ABOUT SUSE

uevent_onidle

uevent::onidle(n)						    User events 						 uevent::onidle(n)

__________________________________________________________________________________________________________________________________________________

NAME

       uevent::onidle - Request merging and deferal to idle time

SYNOPSIS

       package require Tcl  8.4

       package require uevent::onidle  ?0.1?

       package require logger

       ::uevent::onidle objectName commandprefix

       objectName request

_________________________________________________________________

DESCRIPTION

       This  package  provides	objects which can merge multiple requestes for an action and execute the action the moment the system (event loop)
       becomes idle. The action to be run is configured during object construction.

API

       The package exports a class, uevent::onidle, as specified below.

       ::uevent::onidle objectName commandprefix
	      The command creates a new onidle object with an associated global Tcl command whose name is objectName.  This command may be used to
	      invoke various operations on the object.

	      The  commandprefix  is  the  action  to  perform when the event loop is idle and the user asked for it using the method request (See
	      below).

       The object commands created by the class commands above have the form:

       objectName request
	      This method requests the execution of the command prefix specified during the construction of objectName the  next  time	the  event
	      loop is idle. Multiple requests are merged and cause only one execution of the command prefix.

EXAMPLES

       Examples  of this type of deferal are buried in the (C-level) implementations all the Tk widgets, defering geometry calculations and window
       redraw activity in this manner.

BUGS, IDEAS, FEEDBACK
       This document, and the package it describes, will undoubtedly contain bugs and other problems.  Please report such in the  category  uevent
       of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have for
       either package and/or documentation.

KEYWORDS

       callback, deferal, event, idle, merge, on-idle

COPYRIGHT

       Copyright (c) 2008 Andreas Kupries <andreas_kupries@users.sourceforge.net>

uev									0.1							 uevent::onidle(n)