overlay, overwrite, copywin - overlay and manipulate overlapped
curses windows
СИНТАКСИС
#include <curses.h>int overlay(const WINDOW *srcwin, WINDOW *dstwin);int overwrite(const WINDOW *srcwin, WINDOW *dstwin);int copywin(const WINDOW *srcwin, WINDOW *dstwin, int sminrow,int smincol, int dminrow, int dmincol, int dmaxrow,int dmaxcol, int overlay);
ОПИСАНИЕ
overlay, overwrite
The overlay and overwrite routines overlay srcwin on top of dst‐win. scrwin and dstwin are not required to be the same size; on‐
ly text where the two windows overlap is copied. The difference
is that overlay is non-destructive (blanks are not copied) where‐
as overwrite is destructive.
copywin
The copywin routine provides a finer granularity of control over
the overlay and overwrite routines. As in the prefresh routine,
a rectangle is specified in the destination window, (dminrow,
dmincol) and (dmaxrow, dmaxcol), and the upper-left-corner coor‐
dinates of the source window, (sminrow, smincol). If the argu‐
ment overlay is true, then copying is non-destructive, as in
overlay.
ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ
Routines that return an integer return ERR upon failure, and OK
(SVr4 only specifies "an integer value other than ERR") upon suc‐
cessful completion.
X/Open defines no error conditions. In this implementation,
copywin, overlay and overwrite return an error if either of the
window pointers are null, or if some part of the window would be
placed off-screen.
ПРИМЕЧАНИЯ
Note that overlay and overwrite may be macros.
ПЕРЕНОСИМОСТЬ
The XSI Curses standard, Issue 4 describes these functions
(adding the const qualifiers). It further specifies their behav‐
ior in the presence of characters with multibyte renditions (not
yet supported in this implementation).
СМОТРИ ТАКЖЕ
curses(3X), curs_pad(3X), curs_refresh(3X)
КОЛОФОН
This page is part of the ncurses (new curses) project. Informa‐
tion about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have
a bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
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⟨https://github.com/mirror/ncurses.git⟩ on 2024-06-14. (At that
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curs_overlay(3X)
