<!--
****************************************************************************
- * Copyright 2018-2021,2022 Thomas E. Dickey *
+ * Copyright 2018-2022,2023 Thomas E. Dickey *
* Copyright 1998-2006,2010 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************
- * @Id: curs_scroll.3x,v 1.22 2022/02/12 20:05:11 tom Exp @
+ * @Id: curs_scroll.3x,v 1.23 2023/03/11 20:41:05 tom Exp @
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML>
This involves moving the lines in the window character image structure.
The current cursor position is not changed.
- For these functions to work, scrolling must be enabled via <STRONG>scrollok</STRONG>.
+ For these functions to work, scrolling must be enabled via <STRONG>scrol-</STRONG>
+ <STRONG><A HREF="scrollok.3x.html">lok(3x)</A></STRONG>.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
X/Open defines no error conditions.
- This implementation returns an error if the window pointer is null, or
- if scrolling is not enabled in the window, e.g., with <STRONG>scrollok</STRONG>.
+ This implementation returns an error if the window pointer is null, or
+ if scrolling is not enabled in the window, e.g., with <STRONG><A HREF="scrollok.3x.html">scrollok(3x)</A></STRONG>.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
Note that <STRONG>scrl</STRONG> and <STRONG>scroll</STRONG> may be macros.
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, to leave open the possibility
+ 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, to leave open the possibility
of smarter optimization of multiple scroll actions on the next update.
- Neither the SVr4 nor the XSI documentation specify whether the current
+ Neither the SVr4 nor the XSI documentation specify whether the current
attribute or current color-pair of blanks generated by the scroll func-
tion is zeroed. Under this implementation it is.
projects / ncurses.git / blobdiff