curs_touch man page on DigitalUNIX

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curs_touch(3)							 curs_touch(3)

NAME
       curs_touch,   is_linetouched,   is_wintouched,	touchline,   touchwin,
       untouchwin, wtouchln - Curses routines that control refresh

SYNOPSIS
       #include <curses.h>

       bool is_linetouched(
	       WINDOW *win,
	       int line ); bool is_wintouched(
	       WINDOW *win ); int touchline(
	       WINDOW *win,
	       int start,
	       int count ); int touchwin(
	       WINDOW *win ); int untouchwin(
	       WINDOW *win ); int wtouchln(
	       WINDOW *win,
	       int y,
	       int n,
	       int changed );

LIBRARY
       Curses Library (libcurses)

STANDARDS
       Interfaces documented on this reference page conform to industry	 stan‐
       dards as follows:

       is_linetouched,	 is_wintouched,	  touchline,   touchwin,   untouchwin,
       wtouchln:  XCURSES4.2

       Refer to the standards(5) reference page	 for  more  information	 about
       industry standards and associated tags.

DESCRIPTION
       The  touchwin and touchline routines throw away all optimization infor‐
       mation about which parts of the window have been touched, by pretending
       that  the entire window has been drawn on. It is sometimes necessary to
       call these routines when using overlapping windows.  In	this  case,  a
       change  to  one window affects the other window, but the other window's
       records of which lines have been changed do not reflect the  change  in
       the  first window. The touchline routine only pretends that count lines
       have been changed, beginning with line start.

       The untouchwin routine marks all lines in the window as unchanged since
       the last call to wrefresh.

       The  wtouchln  routine makes n lines in the window, starting at line y,
       look as if they	have  changed  (if  changed=1)	or  have  not  changed
       (changed=0) since the last call to wrefresh.

       The  is_linetouched or is_wintouched routines return TRUE if the speci‐
       fied line or window was modified since the last call to wrefresh;  oth‐
       erwise  they  return  FALSE. In addition, is_linetouched returns ERR if
       line is not valid for the given window.

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

       Note that touchline may be a macro.

RETURN VALUES
       All  routines  return the integer ERR upon failure and an integer value
       other than ERR upon successful completion, unless  otherwise  noted  in
       the preceding routine descriptions.

SEE ALSO
       Functions: curses(3), curs_refresh(3)

       Others: standards(5)

								 curs_touch(3)
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