Re: Possible problem with wchgat???

[Brian Raiter]

> In the sample below, I expected the color of the "A" at 5x5 to change to
> YELLOW on RED.  Try as I might, I just can't get it to happen.  Here's
> the example code:

chgat() doesn't mark the cell as needing to be updated. (I don't know
if this is intended behavior or not.)

Inserting a touchwin() before the second wrefresh() gets the behavior
you seek.

b


> #include <curses.h>
> 
> int
> main( int argc, char *argv[] )
> {
>     WINDOW *wstat;
> 
>     initscr();
>     start_color();
>     noecho();
>     init_pair( 1, COLOR_YELLOW, COLOR_BLUE );
>     init_pair( 2, COLOR_YELLOW, COLOR_RED );
> 
>     wstat = newwin( 0, 0, 0, 0 );
> 
>     mvwaddch( wstat, 5, 5, 'A' | A_BOLD | COLOR_PAIR( 1 ) );
>     mvwaddch( wstat, 9, 9, 'Z' | A_BOLD | COLOR_PAIR( 2 ) );
>     wrefresh( wstat );
>     mvwgetch( wstat, 7, 7 );
> 
>     mvwchgat( wstat, 5, 5, 1, A_BOLD, 2, NULL );
>     wrefresh( wstat );
>     mvwgetch( wstat, 7, 7 );
> 
>     delwin( wstat );
>     endwin();
> 
>     return 0;
> }