tcl /tk on cygwin + mouse wheel event

Mon Feb 9 01:55:00 GMT 2004

Alejandro,
	[Please CC as I am not on the cygwin ML, thank you]
	I am not sure I understand your explanation about python seg faulting. 
I did read the file:
/usr/share/doc/usr/share/doc/Cygwin/python-2.3.3.README on why you
But this is still not clear to me, why a wheel event is so complicated 
compare to a Button-1, Button-2 ...
BTW I don't understand why there is a difference in:
1. Starting wish, and then typing code
	% proc foo { args } { puts "foo" }
	% bind . "<MouseWheel>" foo
2. Writing a file contaning the same Tcl/tk code and starting is as:
	$wish wheel.tcl
The solution nÂ°1 works on my system, the solution nÂ°2 doesn't. When 
'wish' is started without argument does it loads some package I am not 
aware of ?
Your help is *greatly* appreciate,
Mathieu
Mathieu Malaterre wrote:
> Alejandro,
>> I try something else:
>> #---- tcl program starts here
> % proc foo { args } { puts "foo" }
> % bind . "<Button-1>" foo
> #----
>> This gives me an Error: unknown option "-state". Here is the log file
>> unknown option "-state"
> unknown option "-state"
> while executing
> "$w cget -state"
> (procedure "tk::ButtonEnter" line 3)
> invoked from within
> "tk::ButtonEnter .
> "
> (command bound to event)
>>> I try searching for this on the internet and it appears as a tcl/tk 
> mismatch version. As I said before I completely remove the c:\cygwin 
> directory and reinstall the tcltk package.
>> Comments/suggestions *really* welcome
>> Thanks a bunch
> Mathieu
>>>>> Mathieu Malaterre wrote:
>>> Alejandro,
>>>> A few more questions. I browse through the python/lib-tk directory 
>> and i found that:
>> ...
>> if sys.plateform == "win32":
>> ...
>>>> But on a cygwin system sys.plateform return "cygwin". Is this a 
>> mistake ? what does sys.plateform return on your system ?
>>>> BTW what does tcl_platform(platform) return on your sytem ?
>>>> Mathieu
>>>> Mathieu Malaterre wrote:
>>>>> Alejandro,
>>>>>> [Please CC as I am not on the list]
>>>>>> Your suggestion did get me a little further :) Now the python 
>>> script output 'foo' but I still get a seg fault (*). On the other 
>>> hand the tcl script didn't change, I still don't get anything. *But* 
>>> if I start startxwin.sh and then start:
>>>>>> $ wish wheel.tcl
>>>>>> then it works fine. The problem is that you told me it is 'Cygwin's
>>> Tcl/Tk is in reality a set of true *native* win32 binaries'. So why do I
>>> need to start X11 ?
>>>>>> BTW I found somebody else having difficulties with python:
>>> <MouseWheel> causes crash on Windows2000
>>> https://sourceforge.net/tracker/?func=detail&atid=105470&aid=673115&group_id=5470 
>>>>>> http://mail.python.org/pipermail/python-bugs-list/2003-January/015756.html 
>>>>>>>>> Thanks
>>> Mathieu
>>>>>> (*)
>>> $ gdb python
>>> GNU gdb 2003年09月20日-cvs (cygwin-special)
>>> Copyright 2003 Free Software Foundation, Inc.
>>> GDB is free software, covered by the GNU General Public License, and 
>>> you are
>>> welcome to change it and/or distribute copies of it under certain
>>> conditions.
>>> Type "show copying" to see the conditions.
>>> There is absolutely no warranty for GDB. Type "show warranty" for 
>>> details.
>>> This GDB was configured as "i686-pc-cygwin"...(no debugging symbols
>>> found)...
>>> (gdb) r wheel.py
>>> Starting program: /usr/bin/python.exe wheel.py
>>>>>> Program received signal SIGSEGV, Segmentation fault.
>>> 0x00b93d59 in tcl84!Tcl_FindExecutable ()
>>> (gdb) bt
>>> #0 0x00b93d59 in tcl84!Tcl_FindExecutable ()
>>> #1 0x00b9289d in tcl84!Tcl_ExternalToUtfDString ()
>>> #2 0x00c23344 in tk84!TkpGetString ()
>>> #3 0x00c3a0c6 in tk84!TkBindDeadWindow ()
>>> #4 0x00c3973d in tk84!Tk_BindEvent ()
>>> #5 0x00c5e33c in tk84!TkBindEventProc ()
>>> #6 0x00c6b6ad in tk84!Tk_HandleEvent ()
>>> #7 0x00c6bdb5 in tk84!TkQueueEventForAllChildren ()
>>> #8 0x00bbd385 in tcl84!Tcl_ServiceEvent ()
>>> #9 0x00bbd666 in tcl84!Tcl_DoOneEvent ()
>>> #10 0x6b384a12 in tkinter!init_tkinter () from
>>> /usr/lib/python2.3/lib-dynload/_tkinter.dll
>>> #11 0x6b274bba in libpython2!PyCFunction_Call () from
>>> /usr/bin/libpython2.3.dll
>>> #12 0x6b2ae23e in libpython2!PyEval_GetFuncDesc () from
>>> /usr/bin/libpython2.3.dll
>>> #13 0x0a06952c in ?? ()
>>>>>>>>>>>>>>>>>> Mathieu Malaterre wrote:
>>>>>>> Hello,
>>>> I am having some issues with mouse wheel on a cygwin system. 
>>>> Could any one comment on this ?
>>>>>>>> None of these scripts work:
>>>> wish
>>>> #---- tcl program starts here
>>>> % proc foo { args } { puts "foo" }
>>>> % bind . "<MouseWheel>" foo
>>>> #----
>>>>>>>> python
>>>> #---- python program starts here
>>>> def foo(event): print "foo"
>>>> import Tkinter
>>>> win = Tkinter.Tk()
>>>> win.bind("<MouseWheel>", foo)
>>>> win.mainloop()
>>>> #----
>>>>>>>>>>>> Is there something I should know to use catch a mouse wheel event in 
>>>> tk on a cygwin system. I also tried the 'unix' fashion that is say 
>>>> binding the Button-4 and Button-5 but still I get no result at all.
>>>>>>>> Comments/suggestions really welcome.
>>>> Thanks a bunch,
>>>> Mathieu
>>>> Ps: by the way if you think this is more of a tcl/tk problem just 
>>>> let me know.
>>>>>>>>>>>>>>>>>>>>>>
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