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CURSES_TOUCH(3) NetBSD Library Functions Manual CURSES_TOUCH(3)
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curses_touch, touchline, touchoverlap, touchwin, untouchwin, wtouchln,
is_linetouched, is_wintouched, redrawwin, wredrawln, syncok, wsyncup,
wsyncdown -- curses window modification routines
Curses Library (libcurses, -lcurses)
touchline(WINDOW *win, int start, int count);
touchoverlap(WINDOW *win1, WINDOW *win2);
wtouchln(WINDOW *win, int line, int n, boolf changed);
is_linetouched(WINDOW *win, int line);
wredrawln(WINDOW *win, int line, int n);
These functions mark lines and windows as modified and check the modifi-
cation status of lines and windows.
The touchline() function marks count lines starting from start in window
win as having been modified. These characters will be synced to the ter-
minal on the next call to wrefresh().
The touchoverlap() function marks the portion of win2 that overlaps win1
as being modified.
The touchwin() function marks the entire window win as having been modi-
fied. Conversely, the untouchwin() function marks the window win as
being unmodified, so that any changes made to that window will not be
synced to the terminal during a wrefresh().
The wtouchln() function performs one of two operations on n lines start-
ing at line in the given window. If changed is 1 then the given line
range is marked as being modified, if changed is 0 then the given line
range is set to being unmodified.
The is_linetouched() function returns TRUE if line in window win has been
modified since the last refresh was done, otherwise FALSE is returned.
is_wintouched() returns TRUE if the window win has been modified since
the last refresh, otherwise FALSE is returned.
The redrawwin() function marks the entire window win as having been cor-
rupted. Is is equivalent to the touchwin() function.
The wredrawln() function marks n lines starting at line in the given win-
dow as corrupted. It is equivalent to wtouchln(win, line, n, 1).
The syncok() function determines whether all the ancestors of the speci-
fied window are implicitly touched whenever there is a change in the win-
dow. The initial state is FALSE.
The wsyncup() function touches all ancestors of win.
The wsyncdown() function touches win if any of its ancestors is touched.
Functions returning pointers will return NULL if an error is detected.
The functions that return an int will return one of the following values:
OK The function completed successfully.
ERR An error occurred in the function.
The NetBSD Curses library complies with the X/Open Curses specification,
part of the Single Unix Specification.
The Curses package appeared in 4.0BSD.
NetBSD 9.99 January 2, 2017 NetBSD 9.99
Modified for NetBSD
by Kimmo Suominen