tkinter redraw rates
fronagzen at gmail.com
fronagzen at gmail.com
Wed Jul 17 07:10:29 EDT 2013
On Wednesday, July 17, 2013 6:07:22 PM UTC+8, Dave Angel wrote:
> On 07/16/2013 11:04 PM, fronagzen at gmail.com wrote:
>
> > Noted on the quoting thing.
> > Regarding the threading, well, first, I'm not so much a programmer as someone who knows a bit of how to program.
> > And it seems that the only way to update a tkinter window is to use the .update() method, which is what I was experimenting with. Start up a new thread that just loops the .update() with a 1ms sleep until the download is done. It seems to work, actually.
>
> update() is to be used when it's too awkward to return to mainloop. In
> my second approach, you would periodically call it inside the processing
> loop. But unless tkinter is unique among GUI's, it's unsafe to do that
> in any thread besides the GUI thread.
>
> --
>
> DaveA
Yes, based on advice from this thread, I'm doing that. From my main thread, I create a thread that handles the download while updating a variable that the mainloop displays as a text output, and in that mainloop, I have a while loop that updates the GUI until the downloading is done.
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