int scrollok(win, bf)
If TRUE, the text in the window win will be scrolled up one line
when the cursor is on the lower right corner and a character is typed
(or newline). If FALSE, the cursor is left in the same position.
When turned on the contents of a window
can be scrolled with the following functions.
(Note: It would be also
scrolled, if you print a new line in the last line of the window. So, be
careful with scrollok(...) or you will get unreasonable results.)
int scroll(win)
This function will scroll up the window (and the lines in the data
structure) one line.
int scrl(n) int wscrl(win, n)
These functions will scroll the window or win up or
down depending on the value of the integer n. If n is
positive the window will be scrolled up n lines, otherwise if
n is negative the window will be scrolled down n lines.
int setscrreg(t, b) int wsetscrreg(win, t, b)
Set a software scrolling region.
The following code should explain how to get the effect of scrolling a text
on the screen. Look also in .c in the example directory.
We have a window with 18 lines and 66 columns and want to scroll a text
in it. S[] is a character array with the text. Max_s is the
number of the last line in s[]. Clear_line will print blank
characters from the current cursor position up to the end of the line
using the current attributes from the window (not A_NORMAL as clrtoeol
does). Beg is the last line from s[] currently shown on the
screen. Scroll is an enumerate to tell the function what to do, show
the NEXT or PREVious line from the text.
