有没有一种方法可以从不是主循环的线程请求在Tkinter主循环上调用函数? [英] Is there a way to request a function to be called on Tkinter mainloop from a thread which is not the mainloop?

问题描述

我有一个程序，该程序接收串行数据，并使用matplotlib通过Tkinter对其进行图形处理.我目前正在使用此功能，但是必须使用.after()函数来轮询队列中的数据.在我过去使用过的其他UI框架(C中的不同项目)中，有一种方法可以要求UI框架从mainloop调用给它的函数(在一段时间之后，在空闲期间，等等). .如果我尝试在不是mainloop的线程上使用.after()，它将无法正常工作并向我抱怨.

I have a program that receives serial data and uses matplotlib to graph it using Tkinter. I have this working currently, but I've had to use the .after() function to poll a queue for data. In other UI frameworks I've used in the past (different projects in C) there has been a way to ask the UI framework to call a function given to it from the mainloop (either after some amount of time, during idle, etc). If I try to use .after() on a thread which isn't the mainloop, it doesn't work and complains at me.

是否可以从主循环调用不是主循环的线程上提供的用户提供的函数?或者，是否有一种方法可以指示mainloop唤醒并在Queue获得一些数据时执行一些工作?

Is there a way to call a user supplied function, provided on a thread which isn't the mainloop, from the mainloop? Or, is there a way to instruct the mainloop to wake up and do some work if a Queue gets some data?

谢谢.

推荐答案

我听说您可以从非GUI线程调用event_generate.如果您确实调用了event_generate，则我读到应该将tail的值赋予when参数.

I've heard that you can call event_generate from the non-GUI thread. If you do call event_generate, I've read that you should give the value of tail to the when parameter.

我个人仅在一个项目中完成了此操作，但它似乎运行良好.

I've personally only done this in one project, but it seemed to work fine.

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