在 wxPython 中生成自定义的 CommandEvent [英] Generate a custom CommandEvent in wxPython

问题描述

我的顶级窗口需要知道自定义控件的内部状态何时发生变化，以便它可以更新 GUI 的各个其他部分.如何在控件中生成自定义事件，以便它可以传播并由顶级窗口处理?

My top-level window needs to know when the internal state of a custom control changes so it can update various other parts of the GUI. How do I generate a custom event in the control, so it can propagate and be handled by the top-level window?

推荐答案

我知道这是一个老问题，但是在 wxPython 中有一种更新的、稍微好一点的方法.转述自 http://wiki.wxpython.org/CustomEventClasses 及以上内容:

I know this is an old question, but there is a newer, slightly nicer, way to do this in wxPython. Paraphrased from http://wiki.wxpython.org/CustomEventClasses and the above:

定义事件:

import wx.lib.newevent
QuantityChangedEvent, EVT_QUANTITY_CHANGED = wx.lib.newevent.NewCommandEvent()

要生成事件:

event = QuantityChangedEvent(self.GetId())
self.GetEventHandler().ProcessEvent(event)
# or ...
#wx.PostEvent(self, event)

绑定事件保持不变.

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