Print every character the user types without conio.h

Question

I want to make a program that runs forever and takes a user input, something like

while(1)
{  
    if(currentkeybeingpressed != NULL)
    {
        print(the current character); /* So that the program just waits until a key is 
                        pressed and outputs the same letter the moment it is touched*/
    }
}

I want to do this on a KISS controller, which does not have the conio.h file ready to import and therefore I cannot use the getch function. Is there another way to find out what key is being pressed at the moment?

@yajiv is it possible to use scanf so that it doesn't wait for user input? — Lorem Ipsum, Mar 03 '18 at 12:31
@yajiv The problem with `scanf` is that most of the time what it reads from is *buffered* and can't read single keys as they are depressed (or without echoing to the terminal). — Some programmer dude, Mar 03 '18 at 12:42
@KidusAmare you can use getchar() which is available in stdio.h — yajiv, Mar 03 '18 at 12:49
Related: https://stackoverflow.com/questions/1798511/how-to-avoid-press-enter-with-any-getchar — Ilja Everilä, Mar 03 '18 at 13:39

score 0 · Answer 1 · answered Mar 03 '18 at 12:54

0

#include<stdio.h>

int main() {
   while(1){
       putchar(getchar());
   }
}

Hope this helps.

answered Mar 03 '18 at 12:54

yajiv

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Doesn't answer my question. This waits for user input and then press enter. I need it so that it doesn't wait and immediately repeats the letter it gets. – Lorem Ipsum Mar 05 '18 at 12:13

Print every character the user types without conio.h

1 Answers1