Insert an input to an exe automatically by Command Window

Question

Matteo Volpi 2021-5-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/827105-insert-an-input-to-an-exe-automatically-by-command-window

回答： Jan 2021-5-11

采纳的回答： Jan

Good morning,

I have to launch a executable file.

I use:

dos('executable.exe')

After that, the exe reports on the Command Window a string which ask me to type an input.

At the moment I should do it time after time.

I tried:

dos('executable.exe < file.txt')

but it doesn't work.

It could be due to the fact that the input file is indicated after the launch of the exe file and not contextually

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Matteo Volpi 2021-5-11

Thank you for your reply.

I cannot moidfy my exe,

I think you are suggesting this approach

dos('executable.exe file.txt')

The problem is not solved. The executable writes a prompt in the Command Window and waits for me to enter the file name from the keyboard.

My question was looking for a Matlab solution where this operation could be automated.

Rik 2021-5-11

The exe must allow such a thing. Matlab cannot send keystrokes to arbitrary programs.

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Answer 1

Jan 2021-5-11

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/827105-insert-an-input-to-an-exe-automatically-by-command-window#answer_697115

You could use this to inject keystrokes: https://www.mathworks.com/matlabcentral/fileexchange/40001-keyinject

The function must wait until the corresponding strings appear in the command window, which can be caught by: https://www.mathworks.com/matlabcentral/fileexchange/32005-cmdwintool

But the code must run, during the external program blocks the execution. I assume a timer callback can solve this. But I'd never try this, because this sounds like a programming technique, which is far too complex to be reliable.