Sorry, I forgot to say the patch is against verstion
2.4.2.
Anton
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Michael Van Canneyt:
> The interface of the pipes unit can be changed
> with a parameter with a default value, so existing
> code continues to work.
Yes, but all the platform-specific pipe.inc files
and pipes.pp will have to be changed anyway because
the CreatePipeHandles will have a di
On Thu, 19 May 2011, Anton Shepelev wrote:
Ludo Brands:
You can file a bug at http://bugs.freepascal.org/.
This is bug #0019325.
...
I thought about writing a patch, but it seems that it is not
enough to modify the implementation of the Windows-specific
pipes.inc.
The correct way to cre
Ludo Brands:
> You can file a bug at http://bugs.freepascal.org/.
This is bug #0019325.
...
I thought about writing a patch, but it seems that it is not
enough to modify the implementation of the Windows-specific
pipes.inc.
The correct way to create pipes for the three channels (out,
in and er
A little update on the subject.
Ludo Brands wrote:
> If you run 'more' in a cmd window you'll notice that
> 'more' echoes the input but only sends to stdout when a
> return is entered. I modified the program to send
> 'Anton'#10 and the program reads back 'Anton'#10 from std-
>
On 09/05/11 12:04, Anton Shepelev wrote:
Ludo Brands:
If you need these handles from the child process use:
InHnd:=GetStdHandle(STD_INPUT_HANDLE);
OutHnd:=GetStdHandle(STD_OUTPUT_HANDLE);
ErrHnd:=GetStdHandle(STD_ERROR_HANDLE);
Thank you, that's what I need.
By the way, it does work in a sim
Ludo Brands:
> If you need these handles from the child process use:
> InHnd:=GetStdHandle(STD_INPUT_HANDLE);
> OutHnd:=GetStdHandle(STD_OUTPUT_HANDLE);
> ErrHnd:=GetStdHandle(STD_ERROR_HANDLE);
Thank you, that's what I need.
By the way, it does work in a simple single-process applica-
tion:
Ludo Brands:
> You can file a bug at http://bugs.freepascal.org/
OK.
> Dupicating handles isn't apparently the only solution. The
> msdn sample creates non-inheritable pipes and hands these
> handles simply over to createprocess, without duplicating.
There are two solutions, but only of them
-boun...@lists.freepascal.org] De la part de Ludo Brands
Envoyé : lundi 9 mai 2011 07:51
À : 'FPC-Pascal users discussions'
Objet : RE : RE : RE : [fpc-pascal] Redirecting input to a child process
Pipe handles can be used directly with readfile:
Var BytesRead:Longword;
windows.Readfile(mProcess.Outpu
011 00:22
À : fpc-pascal@lists.freepascal.org
Objet : Re: [fpc-pascal] Redirecting input to a child process
I wrote:
> I'll try duplicating the handles and report the results.
Yes. It works now. I am creating a non-inheritable handle using
CreatePipe, then duplicating it to an inheritable o
-boun...@lists.freepascal.org
[mailto:fpc-pascal-boun...@lists.freepascal.org] De la part de Anton
Shepelev
Envoyé : dimanche 8 mai 2011 22:26
À : FPC-Pascal users discussions
Objet : Re: RE : RE : [fpc-pascal] Redirecting input to a child process
Ludo Brands:
> > Connected with this remark, is there a way
On 5/8/2011 16:16, Anton Shepelev wrote:
waldo kitty:
how about sending the ^Z line the CRLF is being sent to
indicate line breaks??
This I had tried even before posting the question :)
i wasn't sure and the posts didn't seem to indicate this so i thought i'd ask ;)
now i'll go back to
I wrote:
> I'll try duplicating the handles and report the results.
Yes. It works now. I am creating a non-inheritable handle
using CreatePipe, then duplicating it to an inheritable one
using DuplicateHandle and pass the duplicate to the
CreateProcess funtion.
Does this mean that th
Ludo Brands:
> > Connected with this remark, is there a way to get the
> > underlying StdIn handle in a FreePascal program, so as
> > to read from it per-character, or any other way using
> > the OS's routines?
>
> The handles are mProcess.Input.Handle and mProcess.Out-
> put.Handle
I
waldo kitty:
> how about sending the ^Z line the CRLF is being sent to
> indicate line breaks??
This I had tried even before posting the question :)
Ludo Brands:
> I don't see where you close the mProcess.input.
In my original post I call:
MoreProcess.CloseInput();
As for the progra
users discussions
Objet : RE : [fpc-pascal] Redirecting input to a child process
Ludo Brands:
> If you run 'more' in a cmd window you'll notice that 'more'
> echoes the input but only sends to stdout when a
> return is entered. I modified the
d".
Ludo
-Message d'origine-
De : fpc-pascal-boun...@lists.freepascal.org
[mailto:fpc-pascal-boun...@lists.freepascal.org] De la part de waldo kitty
Envoyé : dimanche 8 mai 2011 20:29
À : fpc-pascal@lists.freepascal.org
Objet : Re: RE : [fpc-pascal] Redirecting input to a child
On 5/8/2011 13:17, Anton Shepelev wrote:
Ludo Brands:
If you run 'more' in a cmd window you'll notice that
'more' echoes the input but only sends to stdout when a
return is entered. I modified the program to send
'Anton'#10 and the program reads back 'Anton'#10 from
stdou
Objet : Re: RE : [fpc-pascal] Redirecting input to a child process
Ludo Brands:
> If you run 'more' in a cmd window you'll notice that 'more'
> echoes the input but only sends to stdout when a
> return is entered. I modified the program to se
s.freepascal.org] De la part de Anton
Shepelev
Envoyé : dimanche 8 mai 2011 19:18
À : FPC-Pascal users discussions
Objet : RE : [fpc-pascal] Redirecting input to a child process
Ludo Brands:
> If you run 'more' in a cmd window you'll notice that 'more'
>
Ludo Brands:
> If you run 'more' in a cmd window you'll notice that
> 'more' echoes the input but only sends to stdout when a
> return is entered. I modified the program to send
> 'Anton'#10 and the program reads back 'Anton'#10 from
> stdout.
Connected with this remark, is
Ludo Brands:
> If you run 'more' in a cmd window you'll notice that
> 'more' echoes the input but only sends to stdout when a
> return is entered. I modified the program to send
> 'Anton'#10 and the program reads back 'Anton'#10 from
> stdout.
Thank you, Ludo, this is great
x27;FPC-Pascal users discussions'
Objet : RE : [fpc-pascal] Redirecting input to a child process
If you run 'more' in a cmd window you'll notice that 'more' echoes the input
but only sends to stdout when a return is entered. I modified the program to
send 'Anto
--Message d'origine-
De : fpc-pascal-boun...@lists.freepascal.org
[mailto:fpc-pascal-boun...@lists.freepascal.org] De la part de Marco van de
Voort
Envoyé : dimanche 8 mai 2011 18:06
À : FPC-Pascal users discussions
Objet : Re: [fpc-pascal] Redirecting input to a child process
In our previous episode, A
Marco van de Voort:
> I played a bit with it, but was unable to make it work. I
> added a writeln of outstream.size to the "running" while,
> and it seems output is written.
Many thanks :)
If I understood you correctly, you put
WriteLn(MoreProcess.Output.Size);
inside the waiting loop an
In our previous episode, Anton Shepelev said:
> > > shell, isn't the shell's input redirected to the
> > > program's?
> >
> > Maybe. I'm pretty sure about batchfiles, but never
> > tried programs, that's why I thought I'd mention
> > the observation.
>
> My program captures both the standard and
Marco van de Voort:
> > When executing command-line programs via the
> > shell, isn't the shell's input redirected to the
> > program's?
>
> Maybe. I'm pretty sure about batchfiles, but never
> tried programs, that's why I thought I'd mention
> the observation.
My program captures both the
In our previous episode, Anton Shepelev said:
>
> When executing command-line programs via the shell,
> isn't the shell's input redirected to the program's?
Maybe. I'm pretty sure about batchfiles, but never tried programs, that's
why I thought I'd mention the observation.
__
Marco van de Voort:
> Why do you execute over the shell? You now pipe
> your information into the shell (since that is
> what you execute directly), not the program.
Thanks for the note, Marco. Unfortunately, replacing
that line with the direct path to more.com had no
effect.
When exe
SteveG:
> This is working on Linux and WinXP
>
> I cut what I was hoping was just the relevant code
> from the unit, so it is missing a bit :)
Here's a full program made from this code:
http://pastebin.com/id90J1rY
It doesn't work for me in WinXP. What about you?
Anton
In our previous episode, Anton Shepelev said:
>MoreProcess.CommandLine := 'C:\WINDOWS\system32\cmd.exe /C more';
Why do you execute over the shell? You now pipe your information into the
shell (since that is what you execute directly), not the program.
___
On 08/05/11 17:30, Anton Shepelev wrote:
SteveG:
Anton - I have attached an extract from some work-
ing code (hopefully I didnt remove anything neces-
sary)
It may help you move on a bit further
I turned your piece of code into a complete program,
but it didn't work either. In fact, there
SteveG:
> Anton - I have attached an extract from some work-
> ing code (hopefully I didnt remove anything neces-
> sary)
> It may help you move on a bit further
I turned your piece of code into a complete program,
but it didn't work either. In fact, there is not
much difference between yo
On 08/05/11 05:38, Anton Shepelev wrote:
Hello all,
I have been experimenting with redirection of stan-
dard I/O of child processes using FreePascal 2.4.2
on Windows. I have succeeded in capturing standard
input and standard output, but failed to feed my own
data to the child's standard inp
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