On Fri, Jan 30, 2004 at 05:02:25AM -0800, Artur de Sousa Rocha wrote:
> Sometimes when I launch my script under Cygwin, I get strange error
> messages like:
>
> 2 [win] python 1912 Winmain: Cannot register window class
>
> Sometimes all of the threads run OK, otherwise after the "correct"
> ones finish the console stops responding anyway. No problems directly
> under Windows, and /lib/python2.3/test/test_threading.py works fine
> too. What is wrong?
I don't know, but I have some more (albeit not much more) information to
contribute. If I patch Cygwin with the attached, then I get the
following:
8 [win] python 2144 Winmain: Cannot register window class, Win32 error 1410
We also have the following:
$ fgrep 1410 /usr/include/w32api/winerror.h
#define ERROR_CLASS_ALREADY_EXISTS 1410L
<WAG>
So, it seems that Cygwin is calling RegisterClass() with the same
WNDCLASS more than once.
</WAG>
Does the above ring any bells?
Thanks,
Jason
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Index: window.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/window.cc,v
retrieving revision 1.28
diff -u -p -r1.28 window.cc
--- window.cc 14 Dec 2003 07:09:22 -0000 1.28
+++ window.cc 3 Feb 2004 19:14:59 -0000
@@ -97,7 +97,7 @@ Winmain (VOID *)
if (!RegisterClass (&wc))
{
- system_printf ("Cannot register window class");
+ system_printf ("Cannot register window class, %E");
return FALSE;
}
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