накладывать и управлять перекрывающимися окнами curses (overlay and manipulate overlapped curses windows)
Имя (Name)
overlay, overwrite, copywin - overlay and manipulate overlapped
curses windows
Синопсис (Synopsis)
#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 (Description)
overlay, overwrite
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.
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
coordinates of the source window, (sminrow, smincol). If the
argument overlay is true, then copying is non-destructive, as in
overlay.
Возвращаемое значение (Return value)
Routines that return an integer return ERR upon failure, and OK
(SVr4 only specifies "an integer value other than ERR") upon
successful 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.
Примечание (Note)
Note that overlay and overwrite may be macros.
Портативность (Portability)
The XSI Curses standard, Issue 4 describes these functions
(adding the const qualifiers). It further specifies their
behavior in the presence of characters with multibyte renditions
(not yet supported in this implementation).
Смотри также (See also)
curses(3X), curs_pad(3X), curs_refresh(3X)
