curs_overlay(3X)

NAME
     curs_overlay:  overlay, overwrite, copywin - overlap and manipulate
     overlapped curses windows

SYNOPSIS
     #include <curses.h>

     int overlay(WINDOW *srcwin, WINDOW *dstwin);
     int overwrite(WINDOW *srcwin, WINDOW *dstwin);
     int copywin(WINDOW *srcwin, WINDOW *dstwin, int sminrow,
          int smincol, int dminrow, int dmincol, int dmaxrow,
          int dmaxcol, int overlay);

DESCRIPTION
     The overlay and overwrite routines overlay srcwin on top of dstwin.
     scrwin and dstwin are not required to be the same size; only text where
     the two windows overlap is copied.  The difference is that overlay is
     non-destructive (blanks are not copied) whereas overwrite is destructive.

     The copywin routine provides a finer granularity of control over the
     overlay and overwrite routines.  Like in the prefresh routine, a
     rectangle is specified in the destination window, (dminrow, dmincol) and
     (dmaxrow, dmaxcol), and the upper-left-corner coordinates of the source
     window, (sminrow, smincol).  If the argument overlay is true, then
     copying is non-destructive, as in overlay.

RETURN VALUE
     Routines that return an integer return ERR upon failure and an integer
     value other than ERR upon successful completion.

NOTES
     The header file <curses.h> automatically includes the header files
     <stdio.h> and <unctrl.h>.

     Note that overlay and overwrite may be macros.

SEE ALSO
     curses(3X), curs_pad(3X), curs_refresh(3X)