(no subject)

[Arvind V]

i am new to ncurses; i have been trying the menu library, and i can't seem 
to get it working; can anybody find out what is wrong with the following 
code?


I link with g++ -lmenu -lncurses filename.cpp

Here's the code...

=======================================================================

#include <menu.h>
#include <unistd.h>
#include <stdlib.h>

WINDOW *filemenu, *fmtitle;

MENU* myMenu;

/*      itemList  is an array of pointers to ITEMs
        itemNames is an array of item names     */
ITEM *itemList[6];
char *itemNames[5] = { "New", "Open", "Save", "Save As", "Exit" };

int i;  //use for anything... ;-)

/*clean-up code*/
void cleanup()
{
   echo(); nocbreak(); nl(); endwin();
}

/*ncurses initialization code*/
void initialize()
{
   use_env(TRUE); initscr(); cbreak(); noecho(); nonl();
}

/*start colors, init color pairs etc */
void initColors()
{
   if(has_colors())
   {
        start_color();
        init_pair(1,COLOR_WHITE,COLOR_BLUE);
       init_pair(2,COLOR_BLACK,COLOR_WHITE);
       init_pair(3,COLOR_BLUE,COLOR_WHITE);
        wbkgdset(filemenu,COLOR_PAIR(2)|WA_BOLD);
        wbkgdset(fmtitle,COLOR_PAIR(3)|WA_BOLD);
   }
}

void main()
{
   /*init ncurses*/
   initialize();

   /*NULL terminated ITEMS** pointer list*/
   itemList[5] = NULL;

   /*dummy description string*/
   char item[] = "MenuItem";

   /*create menu items*/
   for(i=0;i<5;i++)
   {
        itemList[i] = new_item(itemNames[i],item);
        /*check for errors*/
        if(!itemList[i])
        { cleanup(); printf("%s",itemNames[i]); exit(-1); }
   }

   /*make menu from itemList, check for errors*/
   myMenu = new_menu(itemList);
   if(!myMenu||item_count(myMenu)!=5)
   {
        cleanup(); printf("Menu allocation error. Exiting.\n");
        exit(-1);
   }

   /*find size of window reqd for menu*/
   int fmrows, fmcols;
   scale_menu(myMenu,&fmrows, &fmcols);

   /*create filemenu window accordingly...*/
   filemenu = newwin(fmrows,fmcols,1,2);
   fmtitle  = newwin(1,10,0,2);
   if(!(filemenu&&fmtitle))
   {
        cleanup();
        printf("Not enough memory to allocate windows. Exiting.\n");
        exit(-1);
   }

   keypad(filemenu,TRUE);

   /*start_color, init color pairs, etc*/
   initColors();

   /* the next line is to force a window display*/
   //wclear(filemenu); wrefresh(filemenu);

   /*   any of the next two lines make the menu go kaput
        however it displays if i don't change the associated submenu
        window from the default (stdscr).
        What's going on? How can i get this to work?
   */
   //set_menu_win(myMenu,fmtitle);
   //set_menu_sub(myMenu,filemenu);

   /*Curiously, though, the menu attributes set nicely.... */
   set_menu_fore(myMenu,0x0100);
   set_menu_back(myMenu,0x0200);

   i = post_menu(myMenu);

   /*the next line intends to force an update of the filemenu window*/
   //wrefresh(filemenu); wgetch(filemenu);

   getch(); cleanup();
}


=====================================================================

Thanx in advance...

Arvind


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