I am developing a C program in Linux that enters 0 for a certain amount of time and 1's when the space key is pressed. It should run for a maximum amount associated with command-line arguments.

I got the part on how to make it print 0 for the time requested by the user but can't figure out how to print 1's instead of 0 when the space key is pressed. If I do a scan or get function it stops the program because its waiting for a user input and that is not what i want.

ex:
0
0
0
0 ___> user holds space key
1
1
1
1 ____> user lets go of space key
0
0

Welcome to LQ!

No one can provide any helpful response from the information you have posted.

The best way to get help is to reduce the problem to a simplest case which clearly demonstrates what you are trying to accomplish, and fails to work in the way expected. Very often you will solve the problem yourself while doing that, and the simple example will allow others to quickly understand the question and provide helpful suggestions.

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This thread covers a few options:

https://stackoverflow.com/q/20349585/240515

check this, making your other one as a dup
https://www.linuxquestions.org/quest...8/#post5910250

You could start with ncurses using functions noecho, cbreak, nodelay and getch.