WpfPdfTextSelectionTool Class

In This Topic

Visual tool that allows to navigate and select text on PDF page.

Object Model

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Class WpfPdfTextSelectionTool 
   Inherits WpfPdfVisualTool
   Implements Vintasoft.Imaging.UIActions.ISupportUIActions

public class WpfPdfTextSelectionTool : WpfPdfVisualTool, Vintasoft.Imaging.UIActions.ISupportUIActions

public __gc class WpfPdfTextSelectionTool : public WpfPdfVisualTool, Vintasoft.Imaging.UIActions.ISupportUIActions

public ref class WpfPdfTextSelectionTool : public WpfPdfVisualTool, Vintasoft.Imaging.UIActions.ISupportUIActions

Example

This example shows how to search text in PDF document loaded into WPF image viewer.

VB.NET

Public Partial Class FormWithWpfPdfTextSelectionTool
    Inherits System.Windows.Window
    '...
    Private _imageViewer As Vintasoft.Imaging.Wpf.UI.WpfImageViewer = Nothing
    Private _textSelectionTool As Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool = Nothing
            
    '...
    Public Sub New()
        '...
        ' creates the PdfTextSelectionTool instance
        _textSelectionTool = New Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool(New System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(56, 0, 0, 255)))
        ' subscribe to text selection tool events
        AddHandler _textSelectionTool.SelectionChanged, New System.EventHandler(AddressOf _pdfViewerTool_SelectionChanged)
        AddHandler _textSelectionTool.LinkClick, New System.EventHandler(Of Vintasoft.Imaging.Pdf.Wpf.UI.PdfLinkEventArgs)(AddressOf _pdfViewerTool_LinkClick)
        ' sets the PDF text selection tool as current tool
        _imageViewer.VisualTool = _textSelectionTool
    End Sub
            
    '  Occurs when the _viewerTool.Selection is changed.
    Private Sub _pdfViewerTool_SelectionChanged(sender As Object, e As System.EventArgs)
        If _textSelectionTool.SelectedRegion IsNot Nothing Then
            ' show selected text
            System.Windows.MessageBox.Show(_textSelectionTool.SelectedRegion.TextContent)
        End If
    End Sub
            
    ' Occurs when the link is clicked. 
    Private Sub _pdfViewerTool_LinkClick(sender As Object, e As Vintasoft.Imaging.Pdf.Wpf.UI.PdfLinkEventArgs)
        Select Case e.Action.ActionType
            Case Vintasoft.Imaging.Pdf.Tree.PdfActionType.[GoTo]
                ' go to a destination in the current document
                _imageViewer.FocusedIndex = e.DestinationImageIndex
                Exit Select
            Case Vintasoft.Imaging.Pdf.Tree.PdfActionType.Launch
                ' launch an application
                System.Diagnostics.Process.Start(DirectCast(e.Action, Vintasoft.Imaging.Pdf.Tree.PdfLaunchAction).WinCommandLine)
                Exit Select
            Case Vintasoft.Imaging.Pdf.Tree.PdfActionType.URI
                ' resolve a uniform resource identifier (URI)
                System.Diagnostics.Process.Start(DirectCast(e.Action, Vintasoft.Imaging.Pdf.Tree.PdfUriAction).URI)
                Exit Select
        End Select
    End Sub
End Class

public partial class FormWithWpfPdfTextSelectionTool : System.Windows.Window
{
    //...
    Vintasoft.Imaging.Wpf.UI.WpfImageViewer _imageViewer = null;
    Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool _textSelectionTool = null;
            
    //...
    public FormWithWpfPdfTextSelectionTool()
    {            
        //...
        // creates the PdfTextSelectionTool instance
        _textSelectionTool = new Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool(
            new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(56, 0, 0, 255)));
        // subscribe to text selection tool events
        _textSelectionTool.SelectionChanged += new System.EventHandler(_pdfViewerTool_SelectionChanged);
        _textSelectionTool.LinkClick += 
            new System.EventHandler<Vintasoft.Imaging.Pdf.Wpf.UI.PdfLinkEventArgs>(_pdfViewerTool_LinkClick);
        // sets the PDF text selection tool as current tool
        _imageViewer.VisualTool = _textSelectionTool;
    }
            
    //  Occurs when the _viewerTool.Selection is changed.
    private void _pdfViewerTool_SelectionChanged(object sender, System.EventArgs e)
    {
        if (_textSelectionTool.SelectedRegion != null)
            // show selected text
            System.Windows.MessageBox.Show(_textSelectionTool.SelectedRegion.TextContent);
    }
            
    // Occurs when the link is clicked. 
    void _pdfViewerTool_LinkClick(object sender, Vintasoft.Imaging.Pdf.Wpf.UI.PdfLinkEventArgs e)
    {
        switch (e.Action.ActionType)
        {
            case Vintasoft.Imaging.Pdf.Tree.PdfActionType.GoTo:
                // go to a destination in the current document
                _imageViewer.FocusedIndex = e.DestinationImageIndex;
                break;
            case Vintasoft.Imaging.Pdf.Tree.PdfActionType.Launch:
                // launch an application
                System.Diagnostics.Process.Start(((Vintasoft.Imaging.Pdf.Tree.PdfLaunchAction)e.Action).WinCommandLine);
                break;
            case Vintasoft.Imaging.Pdf.Tree.PdfActionType.URI:
                // resolve a uniform resource identifier (URI)
                System.Diagnostics.Process.Start(((Vintasoft.Imaging.Pdf.Tree.PdfUriAction)e.Action).URI);
                break;
        }
    }
}

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     System.Windows.Controls.ContentControl
                        Vintasoft.Imaging.Wpf.UI.VisualTools.WpfVisualTool
                           Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfVisualTool
                              Vintasoft.Imaging.Pdf.Wpf.UI.WpfPdfTextSelectionTool

Requirements

Target Platforms: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

Reference

WpfPdfTextSelectionTool Members
Vintasoft.Imaging.Pdf.Wpf.UI Namespace

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