</ iframe > </noscript> <!-- End Google Tag Manager (noscript) --> <div id="BeforeHeaderContent"> </div> <div id="HeaderContent"> <div id="ProjectTitle">PdfViewer for WPF and Silverlight</div> <div id="PageTitle"><div id="PageTitleText">PreviewKeyDown Event (C1PdfViewerToolbar)</div></div> </div> <div id="AfterHeaderContent"> <!-- Spacing --> <span id="ToggleAllSectionsLink" class="FunctionLink"> <label id="CollapseAllLabel">Collapse All</label> <label id="ExpandAllLabel" style="display: none;">Expand All</label> </span><!-- Spacing --> <span id="LanguageFilterPopupLink" class="PopupLink" data-popupcontentsource="#LanguageCheckboxes" data-popuptitle='Language Filter'> <label id="ShowAllLabel" for="LanguageFilterPopupLink"> Language Filter: All </label> <label id="MultipleLabel" for="LanguageFilterPopupLink" style="display: none;"> Language Filter: Multiple </label> <label id="VBAllLabel" for="LanguageFilterPopupLink" style="display: none;"> Language Filter: Visual Basic </label> <label id="VBLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: Visual Basic (Declaration)</label> <label id="CSLabel" for="LanguageFilterPopupLink" style="display: none;">Language Filter: C#</label> </span> <div class="PopupContent" id="LanguageCheckboxes"> <input data-languagename="VB" id="VBLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentVB"> <label class="LanguageFilter" for="VBCheckbox"> Visual Basic (Declaration) </label> <br><input data-languagename="CS" id="CSLanguageCheckbox" type="checkbox" class="ToggleLanguageCheckbox" checked="true" data-toggleclass="FilteredContentCS"> <label class="LanguageFilter" for="CSCheckbox"> C# </label> </div> </div> <div class="BreadcrumbsContainer"><table><tr><td> <a href="C1.WPF.PdfViewer.4.html">C1.WPF.PdfViewer.4 Assembly</a> > <a href="C1.WPF.PdfViewer.4~C1.WPF.PdfViewer_namespace.html">C1.WPF.PdfViewer Namespace</a> > <a href="C1.WPF.PdfViewer.4~C1.WPF.PdfViewer.C1PdfViewerToolbar.html">C1PdfViewerToolbar Class</a> : PreviewKeyDown Event</td></tr></table></div> <div id="BodyContent"> <div class="SectionHeading" id="syntaxSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Syntax</span></div><div id="syntaxSectionContent" class="SectionContent"> <div class="TabContainer" id="TabContainer"> <ul> <li class="FilteredContentVBAll"><a href="#Syntax-VBAll">Visual Basic</a></li> <li class="FilteredContentCS"><a href="#Syntax-CS">C#</a></li> </ul> <div id="Syntax-VB" class="FilteredContentVB"> <pre><pre><span style="color: #008000; ">'Declaration </span> </pre><pre><span style="color: #0000FF; ">Public</span> <span style="color: #0000FF; ">Event</span> PreviewKeyDown <span style="color: #0000FF; ">As</span> System.Windows.Input.KeyEventHandler</pre></pre> </div> <div id="Syntax-CS" class="FilteredContentCS"> <pre><pre><span style="color: #0000FF; ">public</span> <span style="color: #0000FF; ">event</span> System.Windows.Input.KeyEventHandler PreviewKeyDown</pre></pre> </div> </div> </div> <div class="SectionHeading" id="exceptionsSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Event Data</span></div><div id="exceptionsSectionContent" class="SectionContent"><p>The event handler receives an argument of type System.Windows.Input.KeyEventArgs containing data related to this event. The following <b>KeyEventArgs</b> properties provide information specific to this event.</p><table class="FilteredItemListTable"><tr><th>Property</th><th>Description</th></tr><tr><td class="LinkCell"><strong>Handled</strong></td><td class="DescriptionCell"> </td></tr><tr><td class="LinkCell"><strong>Key</strong></td><td class="DescriptionCell"> </td></tr><tr><td class="LinkCell"><a href="System.Windows~System.Windows.RoutedEventArgs~OriginalSource.html">OriginalSource</a></td><td class="DescriptionCell"> (Inherited from System.Windows.RoutedEventArgs)</td></tr><tr><td class="LinkCell"><strong>PlatformKeyCode</strong></td><td class="DescriptionCell"> </td></tr></table></div> <a name="exampleBookmark"></a> <div class="SectionHeading" id="requirementsSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">Requirements</span></div><div id="requirementsSectionContent" class="SectionContent"><p><b>Target Platforms:</b> Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2</p></div> <a name="seealsobookmark"></a> <div class="SectionHeading" id="seealsoSectionHeading"><span class="SectionHeadingIcon"><!-- --></span><span class="SectionHeadingText">See Also</span></div><div id="seealsoSectionContent" class="SectionContent"><h4 class="subHeading">Reference</h4><p><a href="C1.WPF.PdfViewer.4~C1.WPF.PdfViewer.C1PdfViewerToolbar.html">C1PdfViewerToolbar Class</a> <br><a href="C1.WPF.PdfViewer.4~C1.WPF.PdfViewer.C1PdfViewerToolbar_members.html">C1PdfViewerToolbar Members</a> </p> </div> </div> <div id="FooterContent"> <p> </p><p> </p><hr style="height: 1px"><p>Copyright (c) <script type="text/javascript"> var theDate=new Date() document.write(theDate.getFullYear()) </script> GrapeCity, inc. 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