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update - flush graphics


update ?options?


Changes made via Tk commands do not become visible until a call to update. Update flushes any pending changes to the screen. The following options are supported:

If this option is given, all updates are disabled. This is useful to enable a program to stop mouse movement causing automatic updates while it is making changes to the window.
This reverses a previous update -enable invocation.


Changes that affect window sizes are visible immediately.

UPDATE(9 ) Rev:  Tue Mar 31 02:42:39 GMT 2015