CODEWITHSUNDEEP
cgetch
absalon
absalon

Reputation: 13

Getch() not reading input

I tried using getch() and kbhit() to read user's input but it doesn't seem to recognise that a key was pressed.

void main(){
    printf("start\n");
    while (1){
        if (kbhit() == 1){
            printf("in\n");
            int k = getch();
            printf("k: %d\n", k);
        }
    }
}

This code prints "start" and doesn't print anything when a key is pressed. I had no luck using getch() to read and print even one character, without the loop.

Upvotes: 1

Views: 1214

Answers (1)

user3629249
user3629249

Reputation: 16540

The posted code does not compile!

There are only 2 valid signatures for main(), regardless of what visual studio might allow:

int main( void )
int main( int argc, char *argv[] )

Notice they both return a int, not a void

the posted code is missing the necessary #include statements

when asking a run time question, as this question is doing, post a [mcve] so we can recreate the problem.

the function: kbhit() returns a non-zero value (not necessarily 1) when a key is pressed.

Suggest:

#include <stdio.h>
#include <conio.h>  // note: this is a nonstandard header
                    // in Windows, so it is not portable
int main( void )
{
    printf("start\n");

    while (1)
    {
        if ( kbhit() )
        {
            printf( "in\n" );
            int k = getch();
            printf( "k: %d\n", k );
        }
    }
}

Upvotes: 1

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