Getting terminal width in C?

转：http://stackoverflow.com/questions/1022957/getting-terminal-width-in-c

 

方法一：

#include <sys/ioctl.h>

#include <stdio.h>



int main (void)

{

    struct winsize w;

    ioctl(0, TIOCGWINSZ, &w);



    printf ("lines %d\n", w.ws_row);

    printf ("columns %d\n", w.ws_col);

    return 0;

}

 

方法二：

#include <stdio.h>

#include <stdlib.h>

#include <termcap.h>

#include <error.h>



static char termbuf[2048];



int main(void)

{

    char *termtype = getenv("TERM");



    if (tgetent(termbuf, termtype) < 0) {

        error(EXIT_FAILURE, 0, "Could not access the termcap data base.\n");

    }



    int lines = tgetnum("li");

    int columns = tgetnum("co");

    printf("lines = %d; columns = %d.\n", lines, columns);

    return 0;

}

注意：Needs to be compiled with -ltermcap . There is a lot of other useful information you can get using termcap. Check the termcap manual using info termcap for more details.