1 .\" $NetBSD: curses_scroll.3,v 1.4 2003/04/16 13:35:01 wiz Exp $
4 .\" Brett Lymn (blymn@NetBSD.org, brett_lymn@yahoo.com.au)
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44 .Nd curses window scrolling routines
52 .Fn wscrl "WINDOW *win" "int n"
54 .Fn scroll "WINDOW *win"
56 .Fn scrollok "WINDOW *win" "boolf flag"
58 .Fn setscrreg "int top" "int bottom"
60 .Fn wsetscrreg "WINDOW *win" "int top" "int bottom"
62 These functions scroll areas on
64 or on the specified window.
79 lines are lost from the top of
83 blank lines are inserted at the bottom.
90 blank lines are inserted at the top of
94 lines are lost from the bottom.
98 function is the same as the
100 function, excepting that it scrolls the window specified by
105 function scrolls the window
109 The scrolling behaviour of a window can be controlled by using the
116 then a line wrap at the bottom of the window will cause the window to
117 be scrolled up one line, if
121 then lines that would force a scroll will be truncated.
125 function sets up a software scrolling region on
127 which will define a region of the screen that will be scrolled.
128 The scrolling of this region is also controlled by the
134 function does the same as the
136 function, except that the scrolling region is set on the window specified by
139 If a scrolling region has been set with the
143 functions and the current cursor position is inside the scrolling region,
144 then only the area inside the scrolling region is scrolled.
146 Functions returning pointers will return
148 if an error is detected.
149 The functions that return an int will return one of the following
152 .Bl -tag -width ERR -compact
154 The function completed successfully.
156 An error occurred in the function.
159 .Xr curses_deleteln 3 ,
160 .Xr curses_insdelln 3 ,
161 .Xr curses_insertln 3
165 Curses library complies with the X/Open Curses specification, part of the
166 Single Unix Specification.
168 The Curses package appeared in