Progress bar value is not updating in tk singapore dating places to go
This will interact badly with certain features of Tk that attempt to wait for all idle callbacks to complete.If you would like for an idle callback to reschedule itself continuously, it is better to use a timer handler with a zero timeout period. Simply scheduling a timer handler with a zero timeout period can mean that the event loop will never be idle, keeping other idle callbacks from firing.How do I use these facilities to keep my GUI alive?Reading between the lines, I sense that I am expected to supply [update] as the callback paramter to [$db progress].KBK 2001-04-19: The single-thread model that the Tcl event loop uses makes for simpler programming in most cases because the Tcl programmer doesn't generally need to worry about thread safety.
:^)It's not safe to recursively [update], but if you desire the same effect you must schedule your continuation to be run after all pending idle tasks and timed tasks have completed.If the event handlers aren't expecting to be re-entrant, chaos will result.davidw: What could go wrong in this specific example?A far better practice is to return to the event loop between steps, using At present it is not safe for an idle callback to reschedule itself continuously.However you can get around that on Linux using a compound command that echoes the exit code.Another possibility, surely, is to use Sometimes, though, using another process isn't feasible (you may, for instance, need to be portable to Macintosh) or you have other reasons for wanting to keep your calculations in the same address space as your GUI.
Search for progress bar value is not updating in tk:
The GUI is simply a label and start and stop buttons.