On Thu, May 8, 2008 at 2:56 PM, Glenn Linderman <
perl@...> wrote:
> On approximately 5/8/2008 6:05 AM, came the following characters from the
> keyboard of Geoffrey Spear:
>>
>> On Thu, May 8, 2008 at 12:25 AM, Sylvain Thibault <
sylvaint@...>
>> wrote:
>>>
>>> When debugging inside EMACS, the gui never appears. Somehow win32::gui
>>> is
>>> not happy with STDOUT being redirected to EMACS instead of a console
>>> window. Perl tk gui programs work fine from inside EMACS. Any
>>> workaround ?
>>>
>>> Thanks.
>>
>> I've never had any problem at all running Win32::GUI programs from a
>> *shell* buffer (with cmd.exe as the shell). Have you done any unusual
>> emacs customization?
>
>
> I marked the OPs message as interesting, because I thought I have had that
> problem too...
>
> Because the perl debugger didn't seem to work with emacs for GUI programs
> (or maybe I was too dumb to figure out how), I have mostly not used the perl
> debugger, but instead have used the old "printf" style of debugging, when
> needed...
>
> I was surprised, after you message to learn that I could run
> win32-gui-demos.pl from the shell window, so then I launched it in the
> debugger. Doing a single "c" command takes me to the point in perl5db.pl
> where it says "Debugged program terminated". No win32-gui-demos.pl window
> appeared on the screen (but it did when running from the *shell* buffer).
>
> So I don't know if the problem is:
>
> 1) my ignorance of the perl debugger
> 2) my ignorance of how to use the perl debugger with Win32-GUI
> 3) a limit in Win32-GUI
> 4) a limit in perldb
> 5) a limit in emacs
>
> Because of the plethora of choices there, and given the alternative of using
> brains and printf to compensate, I've never pursued figuring out whether or
> not it is possible to get this combination working.
>
> Help welcome.
I missed the OP's mention of "debugging" and didn't even think of
perldb, but it's definitely the case that Win32::GUI doesn't care
where the script's output is going (which isn't surprising because
AKAIK Win32::GUI itself never sends anything to STDOUT and if having
it redirected broke things that would be incredibly weird.) Using
perl -d in a shell buffer seems to work ok, except that the debugger
stops the program if I close an MDI child window in my program. The
GUI certainly appears, though.
Trying M-x perldb myself seems to consistently fail just because it's
unable to figure out what to do with a path containing spaces, which
is kind of annoying since every other emacs function dealing with
files works perfectly fine in those cases.
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