#include <curses.h>
#include <locale.h>
#include <stdlib.h>

// gcc -I/usr/include/ncursesw/ -D_XOPEN_SOURCE_EXTENDED bkgd_test.c -lncursesw

int main()
{
WINDOW *win1, *win2;
int ret;


setlocale(LC_ALL,"");
initscr();
cbreak(); noecho(); halfdelay(100);

//display value of constants
printw("FALSE  %d\n", FALSE  );
printw("TRUE  %d\n", TRUE  );
printw("false  %d\n", false  );
printw("true  %d\n", true  );
printw("OK  %d\n", OK  );
printw("ERR  %d\n", ERR  );

//test return value of bkgd()
printw("bkgdset( 'w' | COLOR_PAIR(2) )  \n");
    bkgdset( 'w' | COLOR_PAIR(2) );
printw("bkgd( 'b' | A_UNDERLINE )  %d\n", bkgd( 'b' | A_UNDERLINE ) );
//正常 ret=0 : OK

refresh();
getch();

//test return value of wbkgd()
printw("win1=newwin(5,6,7,8)  %d\n", win1=newwin(5,6,7,8)  );
printw("wbkgdset(win1, 'W' | COLOR_PAIR(3) )  \n");
    wbkgdset(win1, 'W' | COLOR_PAIR(3) );
printw("wbkgd(win1, 'B' | A_REVERSE )  %d\n", wbkgd(win1, 'B' | A_REVERSE ) );
//正常 ret=0 : OK
printw("wbkgd(NULL, 'N' | A_BOLD )  %d\n", wbkgd(NULL, 'N' | A_BOLD ) );
//ヌル ret=-1 : ERR

refresh();
wrefresh(win1);
getch();

endwin();
return(0);
}