how to use activex in wxpython with event support

wang xiaoyu wxyisok at hotmail.com
Sun Jan 4 17:18:23 CET 2004


i have solve the problem.my solution is :since this activex(DICOM)
works fine in vb,and i know activex controls developed by vb works
fine in python,so why cant i develop an activex control which wrap
this activex(DICOM)?so i build a vb's activex project insert this
activex(DICOM) in it and delegate this control(DICOM) events into vb
control's event.

this activex developed by vb works fine in wxpython,MakeActiveXClass
works fine.

but i really dont understand why this method works,can you give me
some explanation?

best regards.

wangxiaoyu


wxyisok at hotmail.com (wang xiaoyu) wrote in message news:<e4b04915.0401012215.3f6ff3fd at posting.google.com>...
> Hello:
> i want use activex in wxpython program,but when i use MakeActiveXClass
> an exception occurs.
> 
> this is my source code dealing the DICOM ocx.I must note that in this
> program "hwtxcontrol" is a ocx developed my me use vc6,this ocx works
> fine in wxpython.
> 
> but you can see i only change this ocx with a new DICOM ocx and set up
> eventClass,
> 
> but the exception occure:
> 
> File ".\site-packages\wxPython\lib\activexwrapper.py", line 105, in
> axw__init__
>   File "D:\Py22\lib\site-packages\win32com\gen_py\3A75EE8D-8E68-43FF-A90A-E4835B9A3DBDx0x1x0.py",
> line 187, in __init__
>     cookie=cp.Advise(win32com.server.util.wrap(self,
> usePolicy=EventHandlerPolicy))
> com_error: (-2147220990, 'CONNECT_E_CANNOTCONNECT', None, None)
> 
> the ocx and the source code (in delphi) you can down at:
> 
> http://www.psychology.nottingham.ac.uk/staff/cr1/dicomcom.html
> 
> from wxPython.wx import *
> from wxPython.lib.rcsizer import RowColSizer
> import pywin.mfc.activex
> import activexwrapper,win32ui
> 
> if wxPlatform == '__WXMSW__':
>     from wxPython.lib.activexwrapper import MakeActiveXClass    
>     import win32com.client.gencache
>     import win32com.client
>     try:
>         import hwtxcontrol
>         hwtxocx=hwtxcontrol
>         #import ezdicom
>         #dicomocx=ezdicom
>         #dicomocx=win32com.client.gencache.EnsureModule("{3A75EE8D-8E68-43FF-A90A-E4835B9A3DBD}",0,1,0)
>         #dicomocx=win32com.client.Dispatch("ezDICOMax.ezDICOMX")
>         dicomocx=win32com.client.gencache.EnsureModule('{3A75EE8D-8E68-43FF-A90A-E4835B9A3DBD}',
> 0, 1, 0)
>     except:
>         raise ImportError("IE4 or greater does not appear to be
> installed.")
> 
>     class DicomControl(pywin.mfc.activex.Control, dicomocx.ezDICOMX):
>         def __init__(self):
>             pywin.mfc.activex.Control.__init__(self)
>             dicomocx.ezDICOMX.__init__(self)
>         def OnDCMmouseDown(self, X ,Y ,Button ,Shift):
>                 print "DICOM ocx Click!"
> 
>     class HwtxControl(pywin.mfc.activex.Control, hwtxocx.Hwtx):
>         def __init__(self):
>             pywin.mfc.activex.Control.__init__(self)
>             hwtxocx.Hwtx.__init__(self)
>         def OnClick(self):
>             print "hwtx click!"
> class TestPanel(wxWindow):
>     def __init__(self, parent, log, frame=None):
>         wxWindow.__init__(self, parent, -1,
>                          
> style=wxCLIP_CHILDREN|wxNO_FULL_REPAINT_ON_RESIZE)
>         sizer = wxBoxSizer(wxVERTICAL)
>         hwtxCtls=RowColSizer()
>         theClass2 = MakeActiveXClass(dicomocx.ezDICOMX,eventClass=DicomControl)
>         #theClass2 =
> MakeActiveXClass(hwtxocx.Hwtx,eventClass=HwtxControl)
>         self.ie4=theClass2(self,-1)
>         self.ie4.SetSize(wxSize(300,300))
>         #self.ie4.filename="e:\\d02.img"
>         #self.ie4.palnumber=12
>         #self.ie4.state=1
>         hwtxCtls.Add(self.ie4, row=2, col=2)
>         sizer.Add(hwtxCtls, 0, wxEXPAND)
>         self.SetSizer(sizer)
>         self.SetAutoLayout(True)
>         EVT_WINDOW_DESTROY(self, self.OnDestroy)
>     def OnDestroy(self, evt):
>         if self.ie4:
>             self.ie4.Cleanup()
>             self.ie4 = None
> 
> def runTest(frame, nb, log):
>     if wxPlatform == '__WXMSW__':
>         win = TestPanel(nb, log, frame)
>         return win
>     else:
>         dlg = wxMessageDialog(frame, 'This demo only works on MSW.',
>                           'Sorry', wxOK | wxICON_INFORMATION)
>         dlg.ShowModal()
>         dlg.Destroy()
> 
> overview = __doc__
> 
> if __name__ == '__main__':
>     class TestFrame(wxFrame):
>         def __init__(self):
>             wxFrame.__init__(self, None, -1, "ActiveX test -- Internet
> Explorer",
>                              size=(640, 480),
>                             
> style=wxDEFAULT_FRAME_STYLE|wxNO_FULL_REPAINT_ON_RESIZE)
>             self.CreateStatusBar()
>             self.tp = TestPanel(self, sys.stdout, self)
>             EVT_CLOSE(self, self.OnCloseWindow)
> 
>         def OnCloseWindow(self, evt):
>             self.tp.Destroy()
>             self.Destroy()
> 
>     app = wxPySimpleApp()
>     frame = TestFrame()
>     frame.Show(True)
>     app.MainLoop()
> 
> i am a new python programer but i was really attracted by it elegant
> code.i really want use wxpython as my framework,but if i cant use
> activeX,i will have to change to vb:(
> 
> can you help me.Best regards.
> 
> sincerely 
> 
> wangxiaoyu



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