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?<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp"><head><title>PositionChange Event</title><link rel="stylesheet" type="text/css" href="../styles/presentation.css" /><link rel="stylesheet" type="text/css" href="ms-help://Hx/HxRuntime/HxLink.css" /><script type="text/javascript" src="../scripts/EventUtilities.js"> </script><script type="text/javascript" src="../scripts/StyleUtilities.js"> </script><script type="text/javascript" src="../scripts/SplitScreen.js"> </script><script type="text/javascript" src="../scripts/ElementCollection.js"> </script><script type="text/javascript" src="../scripts/MemberFilter.js"> </script><script type="text/javascript" src="../scripts/CollapsibleSection.js"> </script><script type="text/javascript" src="../scripts/LanguageFilter.js"> </script><script type="text/javascript" src="../scripts/CookieDataStore.js"> </script><meta name="file" content="1b9d943c-f3e2-d1ca-6c5e-789ed68c2da4" /><xml xmlns:msxsl="urn:schemas-microsoft-com:xslt"><MSHelp:Attr Name="AssetID" Value="E:Phidgets.Encoder.PositionChange" /><MSHelp:Keyword Index="A" Term="E:Phidgets.Encoder.PositionChange" /><MSHelp:Keyword Index="A" Term="frlrfPhidgetsEncoderClassPositionChangeTopic" /><MSHelp:Keyword Index="K" Term="PositionChange event" /><MSHelp:Keyword Index="K" Term="Encoder.PositionChange event" /><MSHelp:Keyword Index="F" Term="PositionChange" /><MSHelp:Keyword Index="F" Term="Encoder.PositionChange" /><MSHelp:Keyword Index="F" Term="Phidgets.Encoder.PositionChange" /><MSHelp:Attr Name="TopicType" Value="apiref" /><MSHelp:Attr Name="TopicType" Value="kbSyntax" /><MSHelp:Attr Name="APIType" Value="Managed" /><MSHelp:Attr Name="APILocation" Value="Phidget21.NET.dll" /><MSHelp:Attr Name="APIName" Value="..PositionChange" /><MSHelp:Attr Name="Locale" Value="en-us" /><MSHelp:Attr Name="Abstract" Value="The encoder Position Change event handler delegate." /></xml></head><body><script type="text/javascript">var store = new CookieDataStore('docs');registerEventHandler(window, 'load', function() { var ss = new SplitScreen('control', 'main'); selectLanguage(store.get('lang')); });</script><div id="control"><span class="productTitle">A Sandcastle Documented Class Library</span><br /><span class="topicTitle">PositionChange Event</span><br /><div id="toolbar"><span id="chickenFeet"><a href="d4648875-d41a-783b-d5f4-638df39ee413.htm">Namespaces</a> ? <a href="9332f00d-a9eb-15d0-fa45-c524653f1513.htm">Phidgets</a> ? <a href="fd46493f-aec1-5049-469d-2bce015b9378.htm">Encoder</a> ? <span class="selflink">PositionChange</span></span><span id="languageFilter"><select id="languageSelector" onchange="var names = this.value.split(' '); toggleVisibleLanguage(names[1]); lfc.switchLanguage(names[0]); store.set('lang',this.value); store.save();"><option value="CSharp cs">C#</option><option value="VisualBasic vb">Visual Basic</option><option value="ManagedCPlusPlus cpp">Visual C++</option></select></span><script>var sd = getStyleDictionary(); var lfc = new LanguageFilterController();</script></div></div><div id="main"><span style="color: DarkGray"> </span><div class="summary">
The encoder Position Change event handler delegate.
</div><div class="section"><div class="sectionTitle" onclick="toggleSection(this.parentNode)"><img src="../icons/collapse_all.gif" /> Declaration Syntax</div><div class="sectionContent"><table class="filter"><tr class="tabs" id="syntaxTabs"><td class="tab" x-lang="CSharp" onclick="st.toggleClass('x-lang','CSharp','activeTab','tab'); sb.toggleStyle('x-lang','CSharp','display','block','none');">C#</td><td class="tab" x-lang="VisualBasic" onclick="st.toggleClass('x-lang','VisualBasic','activeTab','tab'); sb.toggleStyle('x-lang','VisualBasic','display','block','none');">Visual Basic</td><td class="tab" x-lang="ManagedCPlusPlus" onclick="st.toggleClass('x-lang','ManagedCPlusPlus','activeTab','tab'); sb.toggleStyle('x-lang','ManagedCPlusPlus','display','block','none');">Visual C++</td></tr></table><div id="syntaxBlocks"><div class="code" x-lang="CSharp"><pre><span class="keyword">public</span> event <a href="3af9dc84-6672-4984-1f96-2c2d2f7f6f85.htm">EncoderPositionChangeEventHandler</a> <span class="identifier">PositionChange</span></pre></div><div class="code" x-lang="VisualBasic"><pre><span class="keyword">Public</span> Event <span class="identifier">PositionChange</span> <span class="keyword">As</span> <a href="3af9dc84-6672-4984-1f96-2c2d2f7f6f85.htm">EncoderPositionChangeEventHandler</a></pre></div><div class="code" x-lang="ManagedCPlusPlus"><pre><span class="keyword">public</span>:
<span class="keyword">event</span> <a href="3af9dc84-6672-4984-1f96-2c2d2f7f6f85.htm">EncoderPositionChangeEventHandler</a>^ <span class="identifier">PositionChange</span> {
<span class="keyword">void</span> <span class="keyword">add</span> (<a href="3af9dc84-6672-4984-1f96-2c2d2f7f6f85.htm">EncoderPositionChangeEventHandler</a>^ <span class="parameter">value</span>);
<span class="keyword">void</span> <span class="keyword">remove</span> (<a href="3af9dc84-6672-4984-1f96-2c2d2f7f6f85.htm">EncoderPositionChangeEventHandler</a>^ <span class="parameter">value</span>);
}</pre></div></div><script type="text/javascript">
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</script></div></div><div class="section"><div class="sectionTitle" onclick="toggleSection(this.parentNode)"><img src="../icons/collapse_all.gif" /> Remarks</div><div class="sectionContent"><p>Will hook to user implemented EncoderPositionChangeEventHandler methods that will be called when the event is triggered.</p><p>The position change event provides data about how many ticks have occured, and how much time has passed since the last position change event, but does not contain an absolute position. This can be obtained from getEncoderPosition.</p><p>There is no limit on the number of position change handlers that can be registered for a particular Phidget.</p></div></div><p><div id="footer"> </div>Assembly: Phidget21.NET (Module: Phidget21.NET) Version: 2.1.3.23</p></div></body></html>?? 快捷鍵說明
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