Creates a new subwindow with numlines lines and numcols columns
    starting at the coordinates (begin_y,begin_x) on the terminal
    screen.

    Format

      #include  <curses.h>

      WINDOW *subwin  (WINDOW *win, int numlines, int numcols, int
                      begin_y, int begin_x);

  Additional Information (explode) :

• Arguments
• Description
• Return Values