If the program doesn't accept the input from a pipe, it probably means that it is using direct access to the console or even simply flushing the input buffer prior to prompting.

As it's a console program, I'm not sure if Win32:CtrlGUI will succeed in feeding it input in the right way. If not, then you could also try using Win32::Console and the WriteInput(event) call. Be sure to use the STD_INPUT_HANDLE parameter for the new() call to get a handle to the existing console input buffer rather than creating a new one.

Even this may not work. For instance, if I was righting a program to accept a password from the console and I wanted to ensure that a human being was entering the password rather than a ghost writing program, I might create a new input console just for the purposes of retrieving that password without the FILE_SHARE_WRITE permission and discard it afterwards. In this case, there should be no way for any other program to 'feed' the input. Hopefully, a yes or no answer to a prompt won't have required such precautions:)

Good luck.


Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.


In reply to Re: forcing STDIN with windows by BrowserUk
in thread forcing STDIN with windows by Anonymous Monk

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