#include <ncurses.h>

WINDOW *create_newwin(int height, int width, int starty, int startx);
void destroy_win(WINDOW *local_win);

int main(int argc, char *argv[]) {
  WINDOW *my_win;
  int startx, starty, width, height;
  int ch;

  initscr();
  cbreak();
  keypad(stdscr, TRUE);
  height=3;
  width=10;
  /* LINES 24 renglones */
  /* COLS 80 columnas */
  starty=(LINES-height)/2;
  startx=(COLS-width)/2;
  printw("Presionar F1 para salir");
  refresh();
  my_win=create_newwin(height, width, starty, startx);
  while((ch=getch()) != KEY_F(1)) {
    switch(ch) {
      case KEY_LEFT: 
        destroy_win(my_win);
        my_win=create_newwin(height, width, starty, --startx);
        break; 
      case KEY_RIGHT: 
        destroy_win(my_win);
        my_win=create_newwin(height, width, starty, ++startx);
        break; 
      case KEY_UP: 
        destroy_win(my_win);
        my_win=create_newwin(height, width, --starty, startx);
        break; 
      case KEY_DOWN: 
        destroy_win(my_win);
        my_win=create_newwin(height, width, ++starty, startx);
        break; 
    }
  }
  endwin();
  return 0;
}

WINDOW *create_newwin(int height, int width, int starty, int startx) {
  WINDOW *local_win;

  local_win=newwin(height, width, starty, startx);
  box(local_win, 0, 0);
  wrefresh(local_win);
  return local_win;
}

void destroy_win(WINDOW *local_win) {
  wborder(local_win, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
  wrefresh(local_win);
  delwin(local_win);
}