安装comtypes了却没有EVT_BeforeNavigate2.... ;(

[lioujian47]

在看demo的时候发现ActiveX_IEHtmlWindow没有反应,于是到demo/下配合着run.py运行ActiveX_IEHtmlWindow.py
　　第一次报错是因为没有安装comtypes,于是去sf下载了唯一的comtypes-0.6.0.win32.exe, 可是安装之后发现问题,如下:
　　
　　wx.VERSION_STRING = 2.8.9.1 (unicode)
　　pid: 3612
　　
　　Traceback (most recent call last):
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\ActiveX_IEHtmlWindow.py", line 223, in <module>
　　 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\run.py", line 147, in main
　　 app = RunDemoApp(name, module, useShell)
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\run.py", line 47, in __init__
　　 wx.App.__init__(self, redirect=False)
　　 File "F:\Python25\Lib\site-packages\wx-2.8-msw-unicode\wx\_core.py", line 7935, in __init__
　　 self._BootstrapApp()
　　 File "F:\Python25\Lib\site-packages\wx-2.8-msw-unicode\wx\_core.py", line 7509, in _BootstrapApp
　　 return _core_.PyApp__BootstrapApp(*args, **kwargs)
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\run.py", line 75, in OnInit
　　 win = self.demoModule.runTest(frame, frame, Log())
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\ActiveX_IEHtmlWindow.py", line 191, in runTest
　　 win = TestPanel(nb, log, frame)
　　 File "D:\Program Files\wxPython2.6 Docs and Demos\demo\ActiveX_IEHtmlWindow.py", line 84, in __init__
　　 self.Bind(iewin.EVT_BeforeNavigate2, self.OnBeforeNavigate2, self.ie)
　　AttributeError: 'module' object has no attribute 'EVT_BeforeNavigate2'
　　
　　报错是没有'EVT_BeforeNavigate2'的属性,我也仔细看过了,确实没有这个属性,但问题是,所有相关都有这个属性啊,怎么回事?
　　请教我该怎么办?

[lioujian47]

ActiveX_IEHtmlWindow.py

# 11/18/2003 - Jeff Grimmett ([e-mail])
#
# o Updated for wx namespace
# 

import  wx

if wx.Platform == '__WXMSW__':
    import  wx.lib.iewin    as  iewin

#----------------------------------------------------------------------

class TestPanel(wx.Panel):
    def __init__(self, parent, log, frame=None):
        wx.Panel.__init__(
            self, parent, -1,
            style=wx.TAB_TRAVERSAL|wx.CLIP_CHILDREN|wx.NO_FULL_REPAINT_ON_RESIZE
            )
            
        self.log = log
        self.current = "http://wxPython.org/"
        self.frame = frame

        if frame:
            self.titleBase = frame.GetTitle()

        sizer = wx.BoxSizer(wx.VERTICAL)
        btnSizer = wx.BoxSizer(wx.HORIZONTAL)

        self.ie = iewin.IEHtmlWindow(self, -1, style = wx.NO_FULL_REPAINT_ON_RESIZE)


        btn = wx.Button(self, -1, "Open", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnOpenButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "Home", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnHomeButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "<--", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnPrevPageButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "-->", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnNextPageButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "Stop", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnStopButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "Search", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSearchPageButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        btn = wx.Button(self, -1, "Refresh", style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnRefreshPageButton, btn)
        btnSizer.Add(btn, 0, wx.EXPAND|wx.ALL, 2)

        txt = wx.StaticText(self, -1, "Location:")
        btnSizer.Add(txt, 0, wx.CENTER|wx.ALL, 2)

        self.location = wx.ComboBox(
                            self, -1, "", style=wx.CB_DROPDOWN|wx.PROCESS_ENTER
                            )
        
        self.Bind(wx.EVT_COMBOBOX, self.OnLocationSelect, self.location)
        self.location.Bind(wx.EVT_KEY_UP, self.OnLocationKey)
        self.location.Bind(wx.EVT_CHAR, self.IgnoreReturn)
        btnSizer.Add(self.location, 1, wx.EXPAND|wx.ALL, 2)

        sizer.Add(btnSizer, 0, wx.EXPAND)
        sizer.Add(self.ie, 1, wx.EXPAND)

        self.ie.LoadUrl(self.current)
        self.location.Append(self.current)

        self.SetSizer(sizer)
        # Since this is a wxWindow we have to call Layout ourselves
        self.Bind(wx.EVT_SIZE, self.OnSize)

        # Hook up the event handlers for the IE window
        self.Bind(iewin.EVT_BeforeNavigate2, self.OnBeforeNavigate2, self.ie)
        self.Bind(iewin.EVT_NewWindow2, self.OnNewWindow2, self.ie)
        self.Bind(iewin.EVT_DocumentComplete, self.OnDocumentComplete, self.ie)
        ##self.Bind(iewin.EVT_ProgressChange,  self.OnProgressChange, self.ie)
        self.Bind(iewin.EVT_StatusTextChange, self.OnStatusTextChange, self.ie)
        self.Bind(iewin.EVT_TitleChange, self.OnTitleChange, self.ie)


    def ShutdownDemo(self):
        # put the frame title back
        if self.frame:
            self.frame.SetTitle(self.titleBase)


    def OnSize(self, evt):
        self.Layout()


    def OnLocationSelect(self, evt):
        url = self.location.GetStringSelection()
        self.log.write('OnLocationSelect: %s\n' % url)
        self.ie.Navigate(url)

    def OnLocationKey(self, evt):
        if evt.KeyCode() == wx.WXK_RETURN:
            URL = self.location.GetValue()
            self.location.Append(URL)
            self.ie.Navigate(URL)
        else:
            evt.Skip()


    def IgnoreReturn(self, evt):
        if evt.GetKeyCode() != wx.WXK_RETURN:
            evt.Skip()

    def OnOpenButton(self, event):
        dlg = wx.TextEntryDialog(self, "Open Location",
                                "Enter a full URL or local path",
                                self.current, wx.OK|wx.CANCEL)
        dlg.CentreOnParent()

        if dlg.ShowModal() == wx.ID_OK:
            self.current = dlg.GetValue()
            self.ie.Navigate(self.current)

        dlg.Destroy()

    def OnHomeButton(self, event):
        self.ie.GoHome()    ## ET Phone Home!

    def OnPrevPageButton(self, event):
        self.ie.GoBack()

    def OnNextPageButton(self, event):
        self.ie.GoForward()

    def OnStopButton(self, evt):
        self.ie.Stop()

    def OnSearchPageButton(self, evt):
        self.ie.GoSearch()

    def OnRefreshPageButton(self, evt):
        self.ie.Refresh(iewin.REFRESH_COMPLETELY)


    def logEvt(self, evt):
        pst = ""
        for name in evt.paramList:
            pst += " %s:%s " % (name, repr(getattr(evt, name)))
        self.log.write('%s: %s\n' % (evt.eventName, pst))


    def OnBeforeNavigate2(self, evt):
        self.logEvt(evt)

    def OnNewWindow2(self, evt):
        self.logEvt(evt)
        # Veto the new window.  Cancel is defined as an "out" param
        # for this event.  See iewin.py
        evt.Cancel = True   

    def OnProgressChange(self, evt):
        self.logEvt(evt)
        
    def OnDocumentComplete(self, evt):
        self.logEvt(evt)
        self.current = evt.URL
        self.location.SetValue(self.current)

    def OnTitleChange(self, evt):
        self.logEvt(evt)
        if self.frame:
            self.frame.SetTitle(self.titleBase + ' -- ' + evt.Text)

    def OnStatusTextChange(self, evt):
        self.logEvt(evt)
        if self.frame:
            self.frame.SetStatusText(evt.Text)


#----------------------------------------------------------------------
# for the demo framework...

def runTest(frame, nb, log):
    if wx.Platform == '__WXMSW__':
        win = TestPanel(nb, log, frame)
        return win
    else:
        from Main import MessagePanel
        win = MessagePanel(nb, 'This demo only works on Microsoft Windows.',
                           'Sorry', wx.ICON_WARNING)
        return win



overview = """\
<html><body>
<h2>wx.lib.iewin.IEHtmlWindow</h2>

The wx.lib.iewin.IEHtmlWindow class is one example of using ActiveX
controls from wxPython using the new wx.activex module.  This allows
you to use an ActiveX control as if it is a wx.Window, you can call
its methods, set/get properties, and receive events from the ActiveX
control in a very intuitive way.

<p> Using this class is simpler than ActiveXWrapper, doesn't rely on
the win32all extensions, and is more "wx\'ish", meaning that it uses
events and etc. as would be expected from any other wx window.

</body></html>
"""



if __name__ == '__main__':
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])


#----------------------------------------------------------------------

[dongnanyanhai]

你的wx版本是2.8.9.1 (unicode)

在这个版本中对iewin做了改变，原本调用方式不能使用了，得把导入的wx.lib.iewin模块改为wx.lib.iewin_old

wx.lib.iewin的事件方式变得更老的方式不同！

[dongnanyanhai]

具体请参考这篇文章：http://hi.baidu.com/limodou/blog/item/d77e8cb12bf07653082302e8.html