python复选框事件触发器

Question

I want to trigger a button event without having to click on it(manually)

self.cb1 = wx.CheckBox(self, -1, "pewpew")
self.Bind(wx.EVT_CHECKBOX, self.lg, self.cb1)
self.cb1.SetValue(True)

I tried the above code , it just initializes the button on checked but it does not trigger the event function. Is it possible to trigger the function manually ?

Answer 1

Yes, you can use wx.CommandEvent and wx.PostEvent :

import wx

class TestFrame(wx.Frame):
    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, id=-1, title=title)
        text = wx.StaticText(self, label=title)

        self.cb1 = wx.CheckBox(self, -1, "pewpew")
        self.Bind(wx.EVT_CHECKBOX, self.lg, self.cb1)

        evt = wx.CommandEvent(wx.EVT_CHECKBOX.typeId, self.cb1.GetId())
        wx.PostEvent(self, evt)


    def lg(self, in_event):
        print in_event
        print 'In lg'


app = wx.App()
frame = TestFrame(None, "Hello, world!")
frame.Show()
app.MainLoop()