Embedded window in wxPython app

Richard Townsend nospam at here.com
Sun Jun 6 16:24:50 CEST 2004


I've been experimenting with passing a window handle from a wxPython app to
a Tkinter app. The Tkinter app should embed a Toplevel window containing a
Canvas widget in the wxPython app's Frame (see example below).

Both apps run, but the Tkinter app's output doesn't appear.

Can anyone see why this isn't working?

Using wxPython-2.5.1/Python 2.3.3/Win98 and Win2000.

regards
Richard

----------------------------

#!/usr/bin/env python
# generated by wxGlade 0.3.3 on Thu Jun 03 14:36:32 2004

import wx
import os


class MyFrame(wx.Frame):
    def __init__(self, *args, **kwds):
        # begin wxGlade: MyFrame.__init__
        kwds["style"] = wx.DEFAULT_FRAME_STYLE
        wx.Frame.__init__(self, *args, **kwds)

        self.__set_properties()
        self.__do_layout()
        # end wxGlade


    def __set_properties(self):
        # begin wxGlade: MyFrame.__set_properties
        self.SetTitle("frame_1")
        # end wxGlade

    def __do_layout(self):
        # begin wxGlade: MyFrame.__do_layout
        self.Layout()
        # end wxGlade


    def StartSlave(self):
        # Get the window id
        window_id = str(self.GetHandle())
        print 'In wx_app window_id =', window_id

        script = 'tk_slave.py'
        cmd = r"C:\python23\python.exe"
        args = [script, script, window_id]
        os.spawnv(os.P_NOWAIT, cmd, args)

        #self.Refresh()


# end of class MyFrame


class MyApp(wx.App):
    def OnInit(self):
        wx.InitAllImageHandlers()
        frame_1 = MyFrame(None, -1, "")
        self.SetTopWindow(frame_1)
        frame_1.Show(1)
        frame_1.StartSlave()
        return 1

# end of class MyApp

if __name__ == "__main__":
    app = MyApp(0)
    app.MainLoop()

----------------------------

#!/usr/bin/env python
# Module: tk_slave.py

import sys
import Tkinter


class EmbeddedTk:
    """Create Embedded Tk app inside a wxPython app """

    def __init__(self, window_id):
        print 'Received window id =', window_id

        self.window_id = window_id
        self.root = Tkinter.Tk()
        self.root.withdraw()

        toplevel = Tkinter.Toplevel(use=self.window_id)
        #toplevel = Tkinter.Toplevel(self.root)

        self.c = Tkinter.Canvas(toplevel, width=250, height=250,
                                bg='white', bd=0)
        self.c.pack()
        self.c.create_rectangle(20,20,230,230)
        self.root.mainloop()


if __name__ == '__main__':

    if len(sys.argv) != 2:
        sys.exit('Usage: python tk_slave.py window_id\n')
    window_id = sys.argv[1]
    EmbeddedTk(window_id)





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