int erase(void); int werase(WINDOW *win); int clear(void); int wclear(WINDOW *win); int clrtobot(void); int wclrtobot(WINDOW *win); int clrtoeol(void); int wclrtoeol(WINDOW *win);
The clear(3) and wclear(3) routines are like erase(3) and werase(3), but they also call clearok(3), so that the screen is cleared completely on the next call to wrefresh(3) for that window and repainted from scratch.
The clrtobot(3) and wclrtobot(3) routines erase from the cursor to the end of screen. That is, they erase all lines below the cursor in the window. Also, the current line to the right of the cursor, inclusive, is erased.
The clrtoeol(3) and wclrtoeol(3) routines erase the current line to the right of the cursor, inclusive, to the end of the current line.
Blanks created by erasure have the current background rendition (as set by wbkgdset(3)) merged into them.
Some historic curses implementations had, as an undocumented feature, the ability to do the equivalent of
This will not work under ncurses.