ByteScout Premium Suite – VB.NET – Set PDF viewer Selection Options and use CustomPaint event with PDF Viewer SDK

Home
/
Articles
/
ByteScout Premium Suite – VB.NET – Set PDF viewer Selection Options and use CustomPaint event with PDF Viewer SDK

printable version:
ByteScout-Premium-Suite-VB-NET-Set-PDF-viewer-Selection-Options-and-use-CustomPaint-event-with-PDF-Viewer-SDK.pdf

How to set PDF viewer selection options and use custompaint event with PDF viewer SDK in VB.NET and ByteScout Premium Suite

Step-by-step tutorial on how to set PDF viewer selection options and use custompaint event with PDF viewer SDK in VB.NET

The documentation is designed for a specific purpose to help you to apply the features on your side. ByteScout Premium Suite is the bundle that includes twelve SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording. It can be applied to set PDF viewer selection options and use custompaint event with PDF viewer SDK using VB.NET.

These VB.NET code samples for VB.NET guide developers to speed up coding of the application when using ByteScout Premium Suite. Just copy and paste the code into your VB.NET application’s code and follow the instructions. Further improvement of the code will make it more robust.

All these programming tutorials along with source code samples and ByteScout free trial version are available for download from our website.

On-demand (REST Web API) version:
Web API (on-demand version)

On-premise offline SDK for Windows:
60 Day Free Trial (on-premise)

Form1.Designer.vb

      Partial Class Form1
	''' <summary>
	''' Required designer variable.
	''' </summary>
	Private components As System.ComponentModel.IContainer = Nothing

	''' <summary>
	''' Clean up any resources being used.
	''' </summary>
	''' <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
	Protected Overrides Sub Dispose(disposing As Boolean)
		If disposing AndAlso (components IsNot Nothing) Then
			components.Dispose()
		End If
		MyBase.Dispose(disposing)
	End Sub

	#Region "Windows Form Designer generated code"

	''' <summary>
	''' Required method for Designer support - do not modify
	''' the contents of this method with the code editor.
	''' </summary>
	Private Sub InitializeComponent()
        Me.pdfViewerControl1 = New Bytescout.PDFViewer.PDFViewerControl()
        Me.toolStrip1 = New System.Windows.Forms.ToolStrip()
        Me.tsbOpen = New System.Windows.Forms.ToolStripButton()
        Me.cbLockSelection = New System.Windows.Forms.CheckBox()
        Me.cbAllowResizeSelection = New System.Windows.Forms.CheckBox()
        Me.cbMultiSelectMode = New System.Windows.Forms.CheckBox()
        Me.toolStrip1.SuspendLayout()
        Me.SuspendLayout()
        '
        'pdfViewerControl1
        '
        Me.pdfViewerControl1.AllowResizeSelectionRectangles = True
        Me.pdfViewerControl1.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
            Or System.Windows.Forms.AnchorStyles.Left) _
            Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.pdfViewerControl1.BackColor = System.Drawing.SystemColors.ButtonShadow
        Me.pdfViewerControl1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.pdfViewerControl1.Location = New System.Drawing.Point(12, 97)
        Me.pdfViewerControl1.MouseMode = Bytescout.PDFViewer.MouseMode.Selection
        Me.pdfViewerControl1.MultiSelectMode = True
        Me.pdfViewerControl1.Name = "pdfViewerControl1"
        Me.pdfViewerControl1.RegistrationKey = Nothing
        Me.pdfViewerControl1.RegistrationName = Nothing
        Me.pdfViewerControl1.Size = New System.Drawing.Size(1153, 568)
        Me.pdfViewerControl1.TabIndex = 0
        '
        'toolStrip1
        '
        Me.toolStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.tsbOpen})
        Me.toolStrip1.Location = New System.Drawing.Point(0, 0)
        Me.toolStrip1.Name = "toolStrip1"
        Me.toolStrip1.Size = New System.Drawing.Size(1177, 25)
        Me.toolStrip1.TabIndex = 1
        Me.toolStrip1.Text = "toolStrip1"
        '
        'tsbOpen
        '
        Me.tsbOpen.ImageTransparentColor = System.Drawing.Color.Magenta
        Me.tsbOpen.Name = "tsbOpen"
        Me.tsbOpen.Size = New System.Drawing.Size(80, 22)
        Me.tsbOpen.Text = "&Open PDF"
        '
        'cbLockSelection
        '
        Me.cbLockSelection.AutoSize = True
        Me.cbLockSelection.Location = New System.Drawing.Point(12, 74)
        Me.cbLockSelection.Name = "cbLockSelection"
        Me.cbLockSelection.Size = New System.Drawing.Size(95, 17)
        Me.cbLockSelection.TabIndex = 2
        Me.cbLockSelection.Text = "Lock selection"
        Me.cbLockSelection.UseVisualStyleBackColor = True
        '
        'cbAllowResizeSelection
        '
        Me.cbAllowResizeSelection.AutoSize = True
        Me.cbAllowResizeSelection.Checked = True
        Me.cbAllowResizeSelection.CheckState = System.Windows.Forms.CheckState.Checked
        Me.cbAllowResizeSelection.Location = New System.Drawing.Point(12, 51)
        Me.cbAllowResizeSelection.Name = "cbAllowResizeSelection"
        Me.cbAllowResizeSelection.Size = New System.Drawing.Size(178, 17)
        Me.cbAllowResizeSelection.TabIndex = 3
        Me.cbAllowResizeSelection.Text = "Allow resize selection rectangles"
        Me.cbAllowResizeSelection.UseVisualStyleBackColor = True
        '
        'cbMultiSelectMode
        '
        Me.cbMultiSelectMode.AutoSize = True
        Me.cbMultiSelectMode.Checked = True
        Me.cbMultiSelectMode.CheckState = System.Windows.Forms.CheckState.Checked
        Me.cbMultiSelectMode.Location = New System.Drawing.Point(12, 28)
        Me.cbMultiSelectMode.Name = "cbMultiSelectMode"
        Me.cbMultiSelectMode.Size = New System.Drawing.Size(108, 17)
        Me.cbMultiSelectMode.TabIndex = 4
        Me.cbMultiSelectMode.Text = "Multi-select mode"
        Me.cbMultiSelectMode.UseVisualStyleBackColor = True
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(1177, 677)
        Me.Controls.Add(Me.cbMultiSelectMode)
        Me.Controls.Add(Me.cbAllowResizeSelection)
        Me.Controls.Add(Me.cbLockSelection)
        Me.Controls.Add(Me.pdfViewerControl1)
        Me.Controls.Add(Me.toolStrip1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.toolStrip1.ResumeLayout(False)
        Me.toolStrip1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub

	#End Region

    Private WithEvents pdfViewerControl1 As Bytescout.PDFViewer.PDFViewerControl
    Private WithEvents toolStrip1 As System.Windows.Forms.ToolStrip
    Private WithEvents tsbOpen As System.Windows.Forms.ToolStripButton
    Private WithEvents cbLockSelection As System.Windows.Forms.CheckBox
    Private WithEvents cbAllowResizeSelection As System.Windows.Forms.CheckBox
    Private WithEvents cbMultiSelectMode As System.Windows.Forms.CheckBox
End Class

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout Premium Suite Home Page

Explore ByteScout Premium Suite Documentation

Explore Samples

Sign Up for ByteScout Premium Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

Form1.vb

      Imports System.Collections.Generic
Imports System.Drawing
Imports System.Windows.Forms
Imports Bytescout.PDFViewer

Public Partial Class Form1
	Inherits Form
	Public Sub New()
		InitializeComponent()
	End Sub

	Protected Overrides Sub OnLoad(e As EventArgs)
		pdfViewerControl1.InputFile = "sample.pdf"

		MyBase.OnLoad(e)
	End Sub

    Private Sub tsbOpen_Click(sender As Object, e As EventArgs) Handles tsbOpen.Click
        Using openFileDialog As New OpenFileDialog()
            openFileDialog.Title = "Open PDF Document"
            openFileDialog.Filter = "PDF Files (*.pdf)|*.pdf|All Files|*.*"

            If openFileDialog.ShowDialog() = DialogResult.OK Then
                Me.Text = openFileDialog.FileName

                Cursor = Cursors.WaitCursor

                Try
                    pdfViewerControl1.InputFile = openFileDialog.FileName
                Catch exception As Exception
                    MessageBox.Show(exception.Message)
                Finally
                    Cursor = Cursors.[Default]
                End Try
            End If
        End Using
    End Sub

    Private Sub cbMultiSelectMode_CheckedChanged(sender As Object, e As EventArgs) Handles cbMultiSelectMode.CheckedChanged
        pdfViewerControl1.MultiSelectMode = cbMultiSelectMode.Checked
    End Sub

    Private Sub cbAllowResizeSelection_CheckedChanged(sender As Object, e As EventArgs) Handles cbAllowResizeSelection.CheckedChanged
        pdfViewerControl1.AllowResizeSelectionRectangles = cbAllowResizeSelection.Checked
    End Sub

    Private Sub cbLockSelection_CheckedChanged(sender As Object, e As EventArgs) Handles cbLockSelection.CheckedChanged
        pdfViewerControl1.LockSelection = cbLockSelection.Checked
    End Sub

	Private _labels As List(Of [String]) = New List(Of String)()

    Private Sub pdfViewerControl1_SelectionChanged(ByVal sender As Object, ByVal selectionChange As SelectionChange, ByVal selectionIndex As Integer) Handles pdfViewerControl1.SelectionChanged
        If pdfViewerControl1.Selection.Length > _labels.Count Then
            For i As Integer = _labels.Count To pdfViewerControl1.Selection.Length - 1
                _labels.Add(New Random().[Next]().ToString())
            Next
        End If
    End Sub

    Private Sub pdfViewerControl1_CustomPaint(sender As Object, e As PaintEventArgs) Handles pdfViewerControl1.CustomPaint
        ' Paint labels
        For i As Integer = 0 To pdfViewerControl1.Selection.Length - 1
            Dim r As Rectangle = Rectangle.Round(pdfViewerControl1.Selection(i))
            r = pdfViewerControl1.TranslateRectangleToViewport(r)

            Dim textSize As Size = TextRenderer.MeasureText(_labels(i), Font)
            Dim textRectangle As New Rectangle(r.Left, r.Top - textSize.Height - 6, textSize.Width + 2, textSize.Height + 2)

            e.Graphics.FillRectangle(Brushes.DarkBlue, textRectangle)
            TextRenderer.DrawText(e.Graphics, _labels(i), Font, textRectangle, Color.White, TextFormatFlags.HorizontalCenter Or TextFormatFlags.VerticalCenter)
        Next
    End Sub
End Class

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout Premium Suite Home Page

Explore ByteScout Premium Suite Documentation

Explore Samples

Sign Up for ByteScout Premium Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

Program.vb

      Imports System.Collections.Generic
Imports System.Windows.Forms

NotInheritable Class Program
	Private Sub New()
	End Sub
	''' <summary>
	''' The main entry point for the application.
	''' </summary>
	<STAThread> _
	Private Shared Sub Main()
		Application.EnableVisualStyles()
		Application.SetCompatibleTextRenderingDefault(False)
		Application.Run(New Form1())
	End Sub
End Class