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1995-07-25
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3KB
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67 lines
uuuuppppddddaaaatttteeee((((nnnn)))) TTTTkkkk (((( )))) uuuuppppddddaaaatttteeee((((nnnn))))
_________________________________________________________________
NNNNAAAAMMMMEEEE
update - Process pending events and/or when-idle handlers |
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS ||||
uuuuppppddddaaaatttteeee ?iiiiddddlllleeeettttaaaasssskkkkssss?
_________________________________________________________________
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
This command is used to bring the entire application world
``up to date.'' It flushes all pending output to the
display, waits for the server to process that output and
return errors or events, handles all pending events of any
sort (including when-idle handlers), and repeats this set of
operations until there are no pending events, no pending
when-idle handlers, no pending output to the server, and no
operations still outstanding at the server.
If the iiiiddddlllleeeettttaaaasssskkkkssss keyword is specified as an argument to the |
command, then no new events or errors are processed; only |
when-idle idlers are invoked. This causes operations that |
are normally deferred, such as display updates and window |
layout calculations, to be performed immediately. |
The uuuuppppddddaaaatttteeee iiiiddddlllleeeettttaaaasssskkkkssss command is useful in scripts where |
changes have been made to the application's state and you |
want those changes to appear on the display immediately, |
rather than waiting for the script to complete. The uuuuppppddddaaaatttteeee |
command with no options is useful in scripts where you are |
performing a long-running computation but you still want the |
application to respond to user interactions; if you |
occasionally call uuuuppppddddaaaatttteeee then user input will be processed |
during the next call to uuuuppppddddaaaatttteeee.
KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
event, flush, handler, idle, update
Page 1 (printed 7/23/95)