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Mike King
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 Posted: Tue Feb 22, 2005 2:43 pm Post subject: Named Pipes as Files |
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From time to time, I find that it would be nice to pipe input into a GUI
application like one would do for a console application by using the '|'
character. Is it possible to create a named pipe and pull content from it
as if it were a file?
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Bob Gonder
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| Posted: Tue Feb 22, 2005 4:27 pm Post subject: Re: Named Pipes as Files |
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Mike King wrote:
| Quote: | From time to time, I find that it would be nice to pipe input into a GUI
application like one would do for a console application by using the '|'
character. Is it possible to create a named pipe and pull content from it
as if it were a file?
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What is it exactly, that you want to do?
'|' and '<' redirected stdin.
'>' redirected stdout.
Those pipes still work from the commandline.
An application can create pipes, and launch a sub program that will
then think those pipes are stdin and stdout.
See CreateProcess(), and in particular, the STARTUPINFO structure.
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Mike King
Guest
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| Posted: Tue Feb 22, 2005 4:47 pm Post subject: Re: Named Pipes as Files |
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"Bob Gonder" <notbg (AT) notmindspring (DOT) invalid> wrote
| Quote: | Mike King wrote:
From time to time, I find that it would be nice to pipe input into a GUI
application like one would do for a console application by using the '|'
character. Is it possible to create a named pipe and pull content from it
as if it were a file?
What is it exactly, that you want to do?
'|' and '<' redirected stdin.
'>' redirected stdout.
Those pipes still work from the commandline.
An application can create pipes, and launch a sub program that will
then think those pipes are stdin and stdout.
See CreateProcess(), and in particular, the STARTUPINFO structure.
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I was thinking about a pull-modal where the data is dynamic (probably
endless) so a file would not be the best solution. Just as an example, I
would like Notepad to be able to read from the pipe. So I would click
File -> Open then type in \.pipemynamedpipe and click Open. Notepad then
would show me some data that would be produce by a Windows Service or a
application that is running in the background.
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Remy Lebeau (TeamB)
Guest
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| Posted: Tue Feb 22, 2005 7:34 pm Post subject: Re: Named Pipes as Files |
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"Mike King" <emailMK (AT) excite (DOT) com> wrote
| Quote: | From time to time, I find that it would be nice to pipe input into
a GUI application like one would do for a console application by
using the '|' character. Is it possible to create a named pipe and
pull content from it as if it were a file?
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Look at GetStdHandle() or GetStartupInfo() to get the process's STDIN pipe,
and then you can use that with ReadFile().
Gambit
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