ByteScout PDF Viewer SDK – VB.NET – Custom MultiKey Press Event Handling

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ByteScout PDF Viewer SDK – VB.NET – Custom MultiKey Press Event Handling

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ByteScout-PDF-Viewer-SDK-VB-NET-Custom-MultiKey-Press-Event-Handling.pdf

custom multikey press event handling in VB.NET with ByteScout PDF Viewer SDK

custom multikey press event handling in VB.NET

This page explains the steps and algorithm of implementing custom multikey press event handling and how to make it work in your application. Custom multikey press event handling in VB.NET can be applied with ByteScout PDF Viewer SDK. ByteScout PDF Viewer SDK is the component that helps in adding pdf viewer into your desktop WinForms application. User may select multiple areas with mouse, can use keyboard shortcuts and zoom in or zoom out and change scaling. You may read coordinates, handle custom painting code and retrieve text inside selection area.

Want to speed up the application development? Then this VB.NET, code samples for VB.NET, developers help to speed up the application development and writing a code when using ByteScout PDF Viewer SDK. If you want to know how it works, then this VB.NET sample code should be copied and pasted into your application’s code editor. Then just compile and run it. Updated and detailed documentation and tutorials are available along with installed ByteScout PDF Viewer SDK if you’d like to learn more about the topic and the details of the API.

If you want to try other samples for VB.NET then free trial version of ByteScout PDF Viewer SDK is available on our website.

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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.toolStrip1.SuspendLayout()
        Me.SuspendLayout()
        '
        'pdfViewerControl1
        '
        Me.pdfViewerControl1.BackColor = System.Drawing.SystemColors.ButtonShadow
        Me.pdfViewerControl1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.pdfViewerControl1.Location = New System.Drawing.Point(0, 27)
        Me.pdfViewerControl1.Margin = New System.Windows.Forms.Padding(4)
        Me.pdfViewerControl1.MouseMode = Bytescout.PDFViewer.MouseMode.Hand
        Me.pdfViewerControl1.Name = "pdfViewerControl1"
        Me.pdfViewerControl1.RegistrationKey = Nothing
        Me.pdfViewerControl1.RegistrationName = Nothing
        Me.pdfViewerControl1.ResetRotationOnPageChange = False
        Me.pdfViewerControl1.Scale = 100
        Me.pdfViewerControl1.SelectionColor = System.Drawing.Color.Red
        Me.pdfViewerControl1.ShowImageObjects = True
        Me.pdfViewerControl1.ShowTextObjects = True
        Me.pdfViewerControl1.ShowVectorObjects = True
        Me.pdfViewerControl1.Size = New System.Drawing.Size(1123, 636)
        Me.pdfViewerControl1.TabIndex = 0
        '
        'toolStrip1
        '
        Me.toolStrip1.ImageScalingSize = New System.Drawing.Size(20, 20)
        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(1123, 27)
        Me.toolStrip1.TabIndex = 1
        Me.toolStrip1.Text = "toolStrip1"
        '
        'tsbOpen
        '
        Me.tsbOpen.Image = Global.MultikeyPressEventHandling.My.Resources.Resources.folder_page
        Me.tsbOpen.ImageTransparentColor = System.Drawing.Color.Magenta
        Me.tsbOpen.Name = "tsbOpen"
        Me.tsbOpen.Size = New System.Drawing.Size(99, 24)
        Me.tsbOpen.Text = "&Open PDF"
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(8.0!, 16.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(1123, 663)
        Me.Controls.Add(Me.pdfViewerControl1)
        Me.Controls.Add(Me.toolStrip1)
        Me.Margin = New System.Windows.Forms.Padding(4)
        Me.Name = "Form1"
        Me.Text = "Multikey Press Event - Try Shift-A, Ctrl-Alt-Shift-A"
        Me.toolStrip1.ResumeLayout(False)
        Me.toolStrip1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub

#End Region

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

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Form1.vb

      Imports System.Windows.Forms

Public Partial Class Form1
    Inherits Form

	Public Sub New()
		InitializeComponent()
	End Sub

    Private Sub tsbOpen_Click(ByVal sender As Object, ByVal 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 PdfViewerControl1_PreProcessKey(source As Object, keyData As Keys, ByRef handled As Boolean) Handles pdfViewerControl1.PreProcessKey

        If keyData = (Keys.A Or Keys.Shift) Then
            MessageBox.Show("Shift-A")
            handled = True
        End If

        If keyData = (Keys.A Or Keys.Control Or Keys.Alt Or Keys.Shift) Then
            MessageBox.Show("Ctrl-Alt-Shift-A")
            handled = True
        End If

    End Sub

End Class

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout PDF Viewer SDK Home Page

Explore ByteScout PDF Viewer SDK Documentation

Explore Samples

Sign Up for ByteScout PDF Viewer SDK 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> _
	Friend Shared Sub Main()
		Application.EnableVisualStyles()
		Application.SetCompatibleTextRenderingDefault(False)
		Application.Run(New Form1())
	End Sub
End Class