<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--Rendered using the Haskell Html Library v0.2--> <HTML ><HEAD ><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" ><TITLE >Graphics.UI.Gtk.Abstract.Scrollbar</TITLE ><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css" ><SCRIPT SRC="haddock-util.js" TYPE="text/javascript" ></SCRIPT ><SCRIPT TYPE="text/javascript" >window.onload = function () {setSynopsis("mini_Graphics-UI-Gtk-Abstract-Scrollbar.html")};</SCRIPT ></HEAD ><BODY ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="topbar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><IMG SRC="haskell_icon.gif" WIDTH="16" HEIGHT="16" ALT=" " ></TD ><TD CLASS="title" >gtk-0.11.2: Binding to the Gtk+ graphical user interface library.</TD ><TD CLASS="topbut" ><A HREF="src/Graphics-UI-Gtk-Abstract-Scrollbar.html" >Source code</A ></TD ><TD CLASS="topbut" ><A HREF="index.html" >Contents</A ></TD ><TD CLASS="topbut" ><A HREF="doc-index.html" >Index</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="modulebar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><FONT SIZE="6" >Graphics.UI.Gtk.Abstract.Scrollbar</FONT ></TD ><TD ALIGN="right" ><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="infohead" >Portability</TD ><TD CLASS="infoval" >portable (depends on GHC)</TD ></TR ><TR ><TD CLASS="infohead" >Stability</TD ><TD CLASS="infoval" >provisional</TD ></TR ><TR ><TD CLASS="infohead" >Maintainer</TD ><TD CLASS="infoval" >gtk2hs-users@lists.sourceforge.net</TD ></TR ></TABLE ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" ><B >Contents</B ></TD ></TR ><TR ><TD ><DL ><DT ><A HREF="#1" >Detail </A ></DT ><DT ><A HREF="#2" >Class Hierarchy </A ></DT ><DT ><A HREF="#3" >Types </A ></DT ></DL ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Description</TD ></TR ><TR ><TD CLASS="doc" >Base class for Graphics.UI.Gtk.Scrolling.HScrollbar and Graphics.UI.Gtk.Scrolling.VScrollbar </TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Synopsis</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="decl" ><SPAN CLASS="keyword" >data</SPAN > <A HREF="#t%3AScrollbar" >Scrollbar</A > </TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Graphics-UI-Gtk-Abstract-Range.html#t%3ARangeClass" >RangeClass</A > o => <A HREF="#t%3AScrollbarClass" >ScrollbarClass</A > o </TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AcastToScrollbar" >castToScrollbar</A > :: <A HREF="/usr/share/doc/ghc/html/libraries/glib-0.11.2/System-Glib-GObject.html#t%3AGObjectClass" >GObjectClass</A > obj => obj -> <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AgTypeScrollbar" >gTypeScrollbar</A > :: <A HREF="Graphics-UI-Gtk-Abstract-Widget.html#t%3AGType" >GType</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AtoScrollbar" >toScrollbar</A > :: <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > o => o -> <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" ><A NAME="1" ><A NAME="1" >Detail </A ></A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="doc" ><P >The <TT ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TT > widget is an abstract base class for Graphics.UI.Gtk.Scrolling.HScrollbar and Graphics.UI.Gtk.Scrolling.VScrollbar. It is not very useful in itself. </P ><P >The position of the thumb in a scrollbar is controlled by the scroll adjustments. See Graphics.UI.Gtk.Misc.Adjustment for the fields in an adjustment - for <TT ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TT >, the "value" field represents the position of the scrollbar, which must be between the "lower" field and "upper - page_size." The "page_size" field represents the size of the visible scrollable area. The "step_increment" and "page_increment" fields are used when the user asks to step down (using the small stepper arrows) or page down (using for example the PageDown key). </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" ><A NAME="2" ><A NAME="2" >Class Hierarchy </A ></A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="doc" ><PRE > | System.Glib.GObject | +----Graphics.UI.Gtk.Abstract.Object | +----Graphics.UI.Gtk.Abstract.Widget | +----Graphics.UI.Gtk.Abstract.Range | +----Scrollbar | +----Graphics.UI.Gtk.Scrolling.HScrollbar | +----Graphics.UI.Gtk.Scrolling.VScrollbar </PRE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" ><A NAME="3" ><A NAME="3" >Types </A ></A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >data</SPAN > <A NAME="t:Scrollbar" ><A NAME="t%3AScrollbar" ></A ></A ><B >Scrollbar</B > </TD ><TD CLASS="declbut" ><A HREF="src/Graphics-UI-Gtk-Types.html#Scrollbar" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Scrollbar')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:Scrollbar" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq" >Eq</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Ord.html#t%3AOrd" >Ord</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/html/libraries/glib-0.11.2/System-Glib-GObject.html#t%3AGObjectClass" >GObjectClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Range.html#t%3ARangeClass" >RangeClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Widget.html#t%3AWidgetClass" >WidgetClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Object.html#t%3AObjectClass" >ObjectClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><SPAN CLASS="keyword" >class</SPAN > <A HREF="Graphics-UI-Gtk-Abstract-Range.html#t%3ARangeClass" >RangeClass</A > o => <A NAME="t:ScrollbarClass" ><A NAME="t%3AScrollbarClass" ></A ></A ><B >ScrollbarClass</B > o </TD ><TD CLASS="declbut" ><A HREF="src/Graphics-UI-Gtk-Types.html#ScrollbarClass" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:ScrollbarClass')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:ScrollbarClass" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > <A HREF="Graphics-UI-Gtk-Scrolling-VScrollbar.html#t%3AVScrollbar" >VScrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > <A HREF="Graphics-UI-Gtk-Scrolling-HScrollbar.html#t%3AHScrollbar" >HScrollbar</A ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:castToScrollbar" ><A NAME="v%3AcastToScrollbar" ></A ></A ><B >castToScrollbar</B > :: <A HREF="/usr/share/doc/ghc/html/libraries/glib-0.11.2/System-Glib-GObject.html#t%3AGObjectClass" >GObjectClass</A > obj => obj -> <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ><TD CLASS="declbut" ><A HREF="src/Graphics-UI-Gtk-Types.html#castToScrollbar" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:gTypeScrollbar" ><A NAME="v%3AgTypeScrollbar" ></A ></A ><B >gTypeScrollbar</B > :: <A HREF="Graphics-UI-Gtk-Abstract-Widget.html#t%3AGType" >GType</A ></TD ><TD CLASS="declbut" ><A HREF="src/Graphics-UI-Gtk-Types.html#gTypeScrollbar" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="topdecl" ><TABLE CLASS="declbar" ><TR ><TD CLASS="declname" ><A NAME="v:toScrollbar" ><A NAME="v%3AtoScrollbar" ></A ></A ><B >toScrollbar</B > :: <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbarClass" >ScrollbarClass</A > o => o -> <A HREF="Graphics-UI-Gtk-Abstract-Scrollbar.html#t%3AScrollbar" >Scrollbar</A ></TD ><TD CLASS="declbut" ><A HREF="src/Graphics-UI-Gtk-Types.html#toScrollbar" >Source</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="botbar" >Produced by <A HREF="http://www.haskell.org/haddock/" >Haddock</A > version 2.6.1</TD ></TR ></TABLE ></BODY ></HTML >