curs_overlay(3CURSES) Curses Library Functions curs_overlay(3CURSES)
NAME
curs_overlay, overlay, overwrite, copywin - overlap and manipulate overlapped curses windows
SYNOPSIS
cc [ flag ... ] file ... -lcurses [ library ... ]
#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 VALUES
Routines that return an integer return ERR upon failure and an integer value other than ERR upon successful completion.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO
curs_pad(3CURSES), curs_refresh(3CURSES), curses(3CURSES), attributes(5)
NOTES
The header <curses.h> automatically includes the headers <stdio.h> and <unctrl.h>.
Note that overlay() and overwrite may be macros.
SunOS 5.10 31 Dec 1996 curs_overlay(3CURSES)
