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Source Code File 04-07_abox

04-07_abox.c

#include <ncurses.h>
   
int main()
{
    initscr();

    addch(ACS_ULCORNER);
    addch(ACS_HLINE);
    addch(ACS_URCORNER);
    addch('\n');
    addch(ACS_VLINE);
    addch(' ');
    addch(ACS_VLINE);
    addch('\n');
    addch(ACS_LLCORNER);
    addch(ACS_HLINE);
    addch(ACS_LRCORNER);
    addch('\n');
    refresh();
    getch();

    endwin();
    return 0;
}

Output Screenshot

Notes

* Output looks good on terminals that support the line-drawing, ACS characters, as shown above.