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- uuuuppppddddaaaatttteeee((((3333TTTTkkkk)))) uuuuppppddddaaaatttteeee((((3333TTTTkkkk))))
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- NNNNAAAAMMMMEEEE
- update - Process pending events and/or when-idle handlers
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- uuuuppppddddaaaatttteeee ?iiiiddddlllleeeettttaaaasssskkkkssss?
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- 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.
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- 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.
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- 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.
- Most display updates are performed as idle handlers, so uuuuppppddddaaaatttteeee iiiiddddlllleeeettttaaaasssskkkkssss
- will cause them to run. However, there are some kinds of updates that
- only happen in response to events, such as those triggered by window size
- changes; these updates will not occur in uuuuppppddddaaaatttteeee iiiiddddlllleeeettttaaaasssskkkkssss.
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- 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.
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- KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
- event, flush, handler, idle, update
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- PPPPaaaaggggeeee 1111
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