[python-win32] How to use win32api.UpdateResource

[cattom]

I wanted to update some resource in an exe file, then I wrote some procedure
like this:

    def updateStringTable...
        ....
        try:
            def win32_uc(text):
                return unicode(text, "unicode-escape").encode("utf-16-le")
            ruUpdateContent = win32_uc(updateContent)
            fmt = "h%ds" % len(ruUpdateContent)
            updateSection = struct.pack(fmt, len(ruUpdateContent)/2,
ruUpdateContent) + \
                          "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

            updateRes = win32api.BeginUpdateResource(self.file, False)
            win32api.UpdateResource(updateRes, win32con.RT_STRING, 1,
updateSection, wLanguage)
            win32api.EndUpdateResource(updateRes, False)

            return True
        except win32api.error:
            return False
        ....

When I ran it, this function named "updateStringTable" returned True. It
seems that everything was ok, but the StringTable was unchangeable when I
saw it again. But I wrote same manner procedure by VC6.0 like this:

  ...
  HANDLE hUpdateRes = BeginUpdateResource( _T("UpdateResource.exe"),
FALSE );
  BYTE pRes[] = {
   0x4, 0x0, 'H', 0x0, 'a', 0x0, 'h', 0x0,
   'a', 0x0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0
  };
  UpdateResource( hUpdateRes, RT_STRING, MAKEINTRESOURCE(1), 2052, pRes,
sizeof(pRes) );
  EndUpdateResource( hUpdateRes, FALSE );
  ...

It worked fine. What's wrong with my python procedure? Thanks for your
reply.
Btw: Python version:2.4.1, Pywin32 Version:Build204 for 2.4