Demo to read a wide character with ncurses and print it to the screen

wchar.c

/*  wchar.c - read a wide character with ncurses and print it on the screen
 *  gcc -Wall $(pkg-config --cflags ncursesw) -o wchar wchar.c $(pkg-config --libs ncursesw)
 *  ./wchar
*/
#include <curses.h>
#include <locale.h>

int main(void)
{
  setlocale(LC_ALL, "");
  initscr();
  cbreak();
  noecho();
  clear();
  mvaddstr(0, 0, "Enter any character: ");
  wint_t wc;
  get_wch(&wc);
  cchar_t cc;
  setcchar(&cc, (wchar_t*)&wc, 0, 0, NULL);
  add_wch(&cc);
  mvaddstr(1, 0, "Press any key to quit");
  getch();
  endwin();
  return 0;
}