|IS_LINETOUCHED(3XCURSES)||X/Open Curses Library Functions||IS_LINETOUCHED(3XCURSES)|
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib \ -R /usr/xpg4/lib -lcurses [ library... ] c89 [ flag... ] file... -lcurses [ library... ] #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);
The touchwin() function marks the entire window as dirty. This makes it appear to X/Open Curses as if the whole window has been changed, thus causing the entire window to be rewritten with the next call to refresh(3XCURSES). This is sometimes necessary when using overlapping windows; the change to one window will not be reflected in the other and, hence will not be recorded.
The touchline() function marks as dirty a portion of the window starting at line start and continuing for count lines instead of the entire window. Consequently, that portion of the window is updated with the next call to refresh().
The untouchwin() function marks all lines in the window as unchanged since the last refresh, ensuring that it is not updated.
The wtouchln() function marks n lines starting at line y as either changed (changed=1) or unchanged (changed=0) since the last refresh.
To find out which lines or windows have been changed since the last refresh, use the is_linetouched() and is_wintouched() functions, respectively. These return TRUE if the specified line or window have been changed since the last call to refresh() or FALSE if no changes have been made.
On success, these functions return OK. Otherwise, they return ERR.
See attributes(5) for descriptions of the following attributes:
|ATTRIBUTE TYPE||ATTRIBUTE VALUE|
|June 5, 2002||OmniOS|