<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Graphics.UI.Gtk.Entry.HScale</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Graphics-UI-Gtk-Entry-HScale.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">gtk-0.12.0: Binding to the Gtk+ graphical user interface library.</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Portability</th><td>portable (depends on GHC)</td></tr><tr><th>Stability</th><td>provisional</td></tr><tr><th>Maintainer</th><td>gtk2hs-users@lists.sourceforge.net</td></tr></table><p class="caption">Graphics.UI.Gtk.Entry.HScale</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Detail
</a></li><li><a href="#g:2">Class Hierarchy
</a></li><li><a href="#g:3">Types
</a></li><li><a href="#g:4">Constructors
</a></li></ul></div><div id="description"><p class="caption">Description</p><div class="doc"><p>A horizontal slider widget for selecting a value from a range
</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><span class="keyword">data</span> <a href="#t:HScale">HScale</a> </li><li class="src short"><span class="keyword">class</span> <a href="Graphics-UI-Gtk-Abstract-Scale.html#t:ScaleClass">ScaleClass</a> o => <a href="#t:HScaleClass">HScaleClass</a> o </li><li class="src short"><a href="#v:castToHScale">castToHScale</a> :: <a href="/usr/share/doc/ghc/html/libraries/glib-0.12.0/System-Glib-GObject.html#t:GObjectClass">GObjectClass</a> obj => obj -> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></li><li class="src short"><a href="#v:gTypeHScale">gTypeHScale</a> :: <a href="Graphics-UI-Gtk-Abstract-Widget.html#t:GType">GType</a></li><li class="src short"><a href="#v:toHScale">toHScale</a> :: <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScaleClass">HScaleClass</a> o => o -> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></li><li class="src short"><a href="#v:hScaleNew">hScaleNew</a> :: <a href="Graphics-UI-Gtk-Misc-Adjustment.html#t:Adjustment">Adjustment</a> -> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/System-IO.html#t:IO">IO</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></li><li class="src short"><a href="#v:hScaleNewWithRange">hScaleNewWithRange</a> :: <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a> -> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a> -> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a> -> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/System-IO.html#t:IO">IO</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></li></ul></div><div id="interface"><h1 id="g:1">Detail
</h1><div class="doc"><p>The <code><a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></code> widget is used to allow the user to select a value using a
horizontal slider. To create one, use <code><a href="Graphics-UI-Gtk-Entry-HScale.html#v:hScaleNewWithRange">hScaleNewWithRange</a></code>.
</p><p>The position to show the current value, and the number of decimal places
shown can be set using the parent <code><a href="Graphics-UI-Gtk-Abstract-Scale.html#t:Scale">Scale</a></code> class's functions.
</p></div><h1 id="g:2">Class Hierarchy
</h1><div class="doc"><pre>
| <code><a href="/usr/share/doc/ghc/html/libraries/glib-0.12.0/System-Glib-GObject.html#t:GObject">GObject</a></code>
| +----<code><a href="Graphics-UI-Gtk-Abstract-Object.html#t:Object">Object</a></code>
| +----<code><a href="Graphics-UI-Gtk-Abstract-Widget.html#t:Widget">Widget</a></code>
| +----<code><a href="Graphics-UI-Gtk-Abstract-Range.html#t:Range">Range</a></code>
| +----<code><a href="Graphics-UI-Gtk-Abstract-Scale.html#t:Scale">Scale</a></code>
| +----HScale
</pre></div><h1 id="g:3">Types
</h1><div class="top"><p class="src"><span class="keyword">data</span> <a name="t:HScale" class="def">HScale</a> <a href="src/Graphics-UI-Gtk-Types.html#HScale" class="link">Source</a></p><div class="subs instances"><p id="control.i:HScale" class="caption collapser" onclick="toggleSection('i:HScale')">Instances</p><div id="section.i:HScale" class="show"><table><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Data-Eq.html#t:Eq">Eq</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Data-Ord.html#t:Ord">Ord</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="/usr/share/doc/ghc/html/libraries/glib-0.12.0/System-Glib-GObject.html#t:GObjectClass">GObjectClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScaleClass">HScaleClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="Graphics-UI-Gtk-Abstract-Scale.html#t:ScaleClass">ScaleClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="Graphics-UI-Gtk-Abstract-Range.html#t:RangeClass">RangeClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="Graphics-UI-Gtk-Abstract-Widget.html#t:WidgetClass">WidgetClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr><tr><td class="src"><a href="Graphics-UI-Gtk-Abstract-Object.html#t:ObjectClass">ObjectClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><span class="keyword">class</span> <a href="Graphics-UI-Gtk-Abstract-Scale.html#t:ScaleClass">ScaleClass</a> o => <a name="t:HScaleClass" class="def">HScaleClass</a> o <a href="src/Graphics-UI-Gtk-Types.html#HScaleClass" class="link">Source</a></p><div class="subs instances"><p id="control.i:HScaleClass" class="caption collapser" onclick="toggleSection('i:HScaleClass')">Instances</p><div id="section.i:HScaleClass" class="show"><table><tr><td class="src"><a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScaleClass">HScaleClass</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><a name="v:castToHScale" class="def">castToHScale</a> :: <a href="/usr/share/doc/ghc/html/libraries/glib-0.12.0/System-Glib-GObject.html#t:GObjectClass">GObjectClass</a> obj => obj -> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a><a href="src/Graphics-UI-Gtk-Types.html#castToHScale" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:gTypeHScale" class="def">gTypeHScale</a> :: <a href="Graphics-UI-Gtk-Abstract-Widget.html#t:GType">GType</a><a href="src/Graphics-UI-Gtk-Types.html#gTypeHScale" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:toHScale" class="def">toHScale</a> :: <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScaleClass">HScaleClass</a> o => o -> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a><a href="src/Graphics-UI-Gtk-Types.html#toHScale" class="link">Source</a></p></div><h1 id="g:4">Constructors
</h1><div class="top"><p class="src"><a name="v:hScaleNew" class="def">hScaleNew</a><a href="src/Graphics-UI-Gtk-Entry-HScale.html#hScaleNew" class="link">Source</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: <a href="Graphics-UI-Gtk-Misc-Adjustment.html#t:Adjustment">Adjustment</a></td><td class="doc"><p><code>adjustment</code> - the <code><a href="Graphics-UI-Gtk-Misc-Adjustment.html#t:Adjustment">Adjustment</a></code> which sets the range of
the scale.
</p></td></tr><tr><td class="src">-> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/System-IO.html#t:IO">IO</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr></table></div><div class="doc"><p>Creates a new <code><a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></code>.
</p></div></div><div class="top"><p class="src"><a name="v:hScaleNewWithRange" class="def">hScaleNewWithRange</a><a href="src/Graphics-UI-Gtk-Entry-HScale.html#hScaleNewWithRange" class="link">Source</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a></td><td class="doc"><p><code>min</code> - minimum value
</p></td></tr><tr><td class="src">-> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a></td><td class="doc"><p><code>max</code> - maximum value
</p></td></tr><tr><td class="src">-> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/Prelude.html#t:Double">Double</a></td><td class="doc"><p><code>step</code> - step increment (tick size) used with keyboard
shortcuts
</p></td></tr><tr><td class="src">-> <a href="/usr/share/doc/ghc/html/libraries/base-4.3.1.0/System-IO.html#t:IO">IO</a> <a href="Graphics-UI-Gtk-Entry-HScale.html#t:HScale">HScale</a></td><td class="doc empty"> </td></tr></table></div><div class="doc"><p>Creates a new horizontal scale widget that lets the user input a number
between <code>min</code> and <code>max</code> (including <code>min</code> and <code>max</code>) with the increment
<code>step</code>. <code>step</code> must be nonzero; it's the distance the slider moves when
using the arrow keys to adjust the scale value.
</p><p>Note that the way in which the precision is derived works best if <code>step</code>
is a power of ten. If the resulting precision is not suitable for your
needs, use <code>Graphics.UI.Gtk.Abstract.Scale.scaleSetDigits</code> to correct it.
</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.9.2</p></div></body></html>
