int scroll(WINDOW *win);
int scrl(int n);
int wscrl(WINDOW *win, int n);
For positive n, the
For these functions to work, scrolling must be enabled via
These routines return ERR upon failure, and OK (SVr4 only specifies "an integer value other than ERR") upon successful completion.
The SVr4 documentation says that the optimization of physically scrolling immediately if the scroll region is the entire screen "is" performed, not "may be" performed. This implementation deliberately does not guarantee that this will occur, in order to leave open the possibility of smarter optimization of multiple scroll actions on the next update.
Neither the SVr4 documentation specifies whether the current attribute or current color-pair of blanks generated by the scroll function is zeroed. Under this implementation it is.
The XSI Curses standard, Issue 4 describes these functions.
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