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Интерактивная система просмотра системных руководств (man-ов)

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copywin (3)
  • copywin (3) ( Solaris man: Библиотечные вызовы )
  • copywin (3) ( FreeBSD man: Библиотечные вызовы )
  • >> copywin (3) ( Linux man: Библиотечные вызовы )
  •  

    NAME

    overlay,
    overwrite,
    copywin - overlay and manipulate overlapped curses windows
    
    
     
    

    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);  

    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 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.  

    NOTES

    Note that overlay and overwrite may be macros.  

    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).  

    SEE ALSO

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


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    NOTES
    PORTABILITY
    SEE ALSO


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