Move the cursor to coordinates (y,x) and delete the character
    on the specified window. The mvdelch function acts on the stdscr
    window.

    Format

      #include  <curses.h>

      int mvdelch  (int y, int x);

      int mvwdelch  (WINDOW *win, int y, int x);

  Additional Information (explode) :

• Arguments
• Description
• Return Values