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Source Code File 05-03_corners

05-03_corners.c

#include <ncurses.h>
   
int main()
{
    int lines,cols;

    initscr();
    getmaxyx(stdscr,lines,cols);
    lines--;
    cols--;
            
    mvaddch(0,0,'*');           /* UL corner */
    refresh();
    napms(500);                 /* pause 1/2 sec */
    
    mvaddch(0,cols,'*');;       /* UR corner */
    refresh();
    napms(500);

    mvaddch(lines,0,'*');       /* LL corner */
    refresh();
    napms(500);

    mvaddch(lines,cols,'*');    /* LR corner */
    refresh();
    getch();

    endwin();
    return 0;
}

Output Screenshot

Notes

* The final mvaddch() statement doesn't scroll the screen — unless scrolling has been enabled. Refer to the book for details on the scrollok() function.