Problems with chgat-family of functions

[Sadrul H Chowdhury]

Hi. I am trying the following piece of code:

/***************************** start of code *****************************/
#include <ncurses.h>

int main()
{
        WINDOW *w;

        initscr();
        start_color();

        box(stdscr, 0, 0);

        mvwchgat(stdscr, 0, 0, 6, A_BLINK, 1, NULL);
        wrefresh(stdscr);

        w = newwin(5, 5, 10, 10);
        box(w, 0, 0);
        mvwchgat(w, 0, 0, -1, A_BLINK, 1, NULL);
        wrefresh(w);
        getch();

        mvwchgat(stdscr, 0, 8, 6, A_BLINK, 1, NULL);
        wrefresh(stdscr);
        getch();

        endwin();

        return 0;
}

/***************************** end of code *****************************/

The changes after the first getch() doesn't seem to do anything. Is there something I need to do to show the update on the screen?

Also, the call to `box` shows a nice proper rectangular box. But when I do chgat on them, they show up as ascii chars (eg. l,q,k,x etc). Is there any way I can chgat and still show the nice straight-line characters?

Thanks.

Sadrul