#include <curses.h>#include <stdlib.h>#define ENTER 10#define ESCAPE 27void init_curses(){       initscr();       start_color();       init_pair(1,COLOR_WHITE,COLOR_BLUE);       init_pair(2,COLOR_BLUE,COLOR_WHITE);       init_pair(3,COLOR_RED,COLOR_WHITE);       curs_set(0);       noecho();       keypad(stdscr,TRUE);}void draw_menubar(WINDOW *menubar){       wbkgd(menubar,COLOR_PAIR(2));       waddstr(menubar,"第一個菜單");       wattron(menubar,COLOR_PAIR(3));       waddstr(menubar,"(F1)");       wattroff(menubar,COLOR_PAIR(3));       wmove(menubar,0,20);       waddstr(menubar,"第二個菜單");       wattron(menubar,COLOR_PAIR(3));       waddstr(menubar,"(F2)");       wattroff(menubar,COLOR_PAIR(3));}WINDOW **draw_menu(int start_col){       int i;       WINDOW **items;       items=(WINDOW **)malloc(9*sizeof(WINDOW *));       items[0]=newwin(10,19,1,start_col);       wbkgd(items[0],COLOR_PAIR(2));       box(items[0],ACS_VLINE,ACS_HLINE);       items[1]=subwin(items[0],1,17,2,start_col+1);       items[2]=subwin(items[0],1,17,3,start_col+1);       items[3]=subwin(items[0],1,17,4,start_col+1);       items[4]=subwin(items[0],1,17,5,start_col+1);       items[5]=subwin(items[0],1,17,6,start_col+1);       items[6]=subwin(items[0],1,17,7,start_col+1);       items[7]=subwin(items[0],1,17,8,start_col+1);       items[8]=subwin(items[0],1,17,9,start_col+1);       for (i=1;i<9;i++)               wprintw(items[i],"菜單項目%d",i);       wbkgd(items[1],COLOR_PAIR(1));       wrefresh(items[0]);       return items;}void delete_menu(WINDOW **items,int count){       int i;       for (i=0;i<count;i++)               delwin(items[i]);       free(items);}int scroll_menu(WINDOW **items,int count,int menu_start_col){       int key;       int selected=0;       while (1) {               key=getch();               if (key==KEY_DOWN || key==KEY_UP) {                       wbkgd(items[selected+1],COLOR_PAIR(2));                       wnoutrefresh(items[selected+1]);                       if (key==KEY_DOWN) {                               selected=(selected+1) % count;                       } else {                               selected=(selected+count-1) % count;                       }                       wbkgd(items[selected+1],COLOR_PAIR(1));                       wnoutrefresh(items[selected+1]);                       doupdate();               } else if (key==KEY_LEFT || key==KEY_RIGHT) {                       delete_menu(items,count+1);                       touchwin(stdscr);                       refresh();                       items=draw_menu(20-menu_start_col);                       return scroll_menu(items,8,20-menu_start_col);               } else if (key==ESCAPE) {                       return -1;               } else if (key==ENTER) {                       return selected;               }       }}int main(){   int key;   WINDOW *menubar,*messagebar;      init_curses();      bkgd(COLOR_PAIR(1));   menubar=subwin(stdscr,1,80,0,0);   messagebar=subwin(stdscr,1,79,23,1);   draw_menubar(menubar);   move(2,1);   printw("Press F1 or F2 to open the menus. ");   printw("ESC quits.");   refresh();   do {       int selected_item;       WINDOW **menu_items;       key=getch();       werase(messagebar);       wrefresh(messagebar);       if (key==KEY_F(1)) {           menu_items=draw_menu(0);           selected_item=scroll_menu(menu_items,8,0);           delete_menu(menu_items,9);           if (selected_item<0)               wprintw(messagebar,"You haven't selected any item.");           else               wprintw(messagebar,                 "You have selected menu item %d.",selected_item+1);           touchwin(stdscr);           refresh();       } else if (key==KEY_F(2)) {           menu_items=draw_menu(20);           selected_item=scroll_menu(menu_items,8,20);           delete_menu(menu_items,9);           if (selected_item<0)               wprintw(messagebar,"You haven't selected any item.");           else               wprintw(messagebar,                 "You have selected menu item %d.",selected_item+1);           touchwin(stdscr);           refresh();       }   } while (key!=ESCAPE);      delwin(menubar);   delwin(messagebar);   endwin();   return 0;}