Print labels is easy to implement in VB.NET if you use these source codes below. Want to print labels in your VB.NET app? ByteScout Barcode SDK is designed for it. ByteScout Barcode SDK is the fully featured library to generate barcodes. Supports QR Code, Code 39, Code 128, UPC, GS1, GS-128, PDF417, Datamatrix and many other barcode types. Includes various options for barcode generation to ensure output quality, add barcodes to new or existing pdf files and images.
The SDK samples like this one below explain how to quickly make your application do print labels in VB.NET with the help of ByteScout Barcode SDK. This VB.NET sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! You can use these VB.NET sample examples in one or many applications.
You can download free trial version of ByteScout Barcode SDK from our website to see and try many others source code samples for VB.NET.
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<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
Try
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
Finally
MyBase.Dispose(disposing)
End Try
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(Form1))
Me.buttonPrint = New System.Windows.Forms.Button()
Me.PrintPreviewDialog1 = New System.Windows.Forms.PrintPreviewDialog()
Me.PrintDocument1 = New System.Drawing.Printing.PrintDocument()
Me.PrintDialog1 = New System.Windows.Forms.PrintDialog()
Me.SuspendLayout()
'
'buttonPrint
'
Me.buttonPrint.Location = New System.Drawing.Point(12, 12)
Me.buttonPrint.Name = "buttonPrint"
Me.buttonPrint.Size = New System.Drawing.Size(260, 57)
Me.buttonPrint.TabIndex = 1
Me.buttonPrint.Text = "Draw And Print Cards"
Me.buttonPrint.UseVisualStyleBackColor = True
'
'PrintPreviewDialog1
'
Me.PrintPreviewDialog1.AutoScrollMargin = New System.Drawing.Size(0, 0)
Me.PrintPreviewDialog1.AutoScrollMinSize = New System.Drawing.Size(0, 0)
Me.PrintPreviewDialog1.ClientSize = New System.Drawing.Size(400, 300)
Me.PrintPreviewDialog1.Document = Me.PrintDocument1
Me.PrintPreviewDialog1.Enabled = True
Me.PrintPreviewDialog1.Icon = CType(resources.GetObject("PrintPreviewDialog1.Icon"), System.Drawing.Icon)
Me.PrintPreviewDialog1.Name = "PrintPreviewDialog1"
Me.PrintPreviewDialog1.Visible = False
'
'PrintDocument1
'
'
'PrintDialog1
'
Me.PrintDialog1.Document = Me.PrintDocument1
Me.PrintDialog1.UseEXDialog = 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(284, 149)
Me.Controls.Add(Me.buttonPrint)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
Private WithEvents buttonPrint As System.Windows.Forms.Button
Friend WithEvents PrintPreviewDialog1 As System.Windows.Forms.PrintPreviewDialog
Friend WithEvents PrintDocument1 As System.Drawing.Printing.PrintDocument
Friend WithEvents PrintDialog1 As System.Windows.Forms.PrintDialog
End Class
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Imports System.Drawing.Drawing2D
Imports Bytescout.BarCode
Public Class Form1
Dim PaperSize As SizeF = New SizeF(5.5F, 8.75F) ' 5.5 x 8.75 inches
Const PrintingResolution As Integer = 300 ' 300 dots per inch
Public Sub New()
' This call is required by the designer.
InitializeComponent()
' Make the print preview dialog larger by default
PrintPreviewDialog1.MinimumSize = New Size(800, 600)
End Sub
Private Sub buttonPrint_Click(sender As Object, e As EventArgs) Handles buttonPrint.Click
' Show print setup dialog, then print preview
If PrintDialog1.ShowDialog() = DialogResult.OK Then
PrintPreviewDialog1.ShowDialog()
End If
End Sub
Private Sub PrintDocument1_PrintPage(sender As Object, e As Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
' Draw page on the printer device context
Dim pageBitmap = DrawPage()
e.Graphics.DrawImage(pageBitmap, 0, 0)
End Sub
' Draw cards on a bitmap of custom size
Private Function DrawPage() As Bitmap
Dim cardSize As SizeF = New SizeF(PaperSize.Width / 4, PaperSize.Height / 4) ' 4 x 4 cards on a page
' Prepare constant and variable labels
Dim strBrand = "CJ SHOES"
Dim strModel = "ARTHUR-1N"
Dim strColor = "BLK"
Dim shoeSizeStart As Single = 5.5F
Dim shoeSizeStep As Single = 0.5F
Dim barcodeStartValue As Long = 4611030000
Dim barcodeValueStep As Integer = 1
' Prepare fonts
Dim font1 = New Font("Arial", 0.12F, GraphicsUnit.Inch)
Dim font2 = New Font("Arial", 0.1F, GraphicsUnit.Inch)
Dim font3 = New Font("Arial", 0.09F, GraphicsUnit.Inch)
Dim font4 = New Font("Arial", 0.15F, GraphicsUnit.Inch)
' Prepare barcode generator
Dim barcode = New Barcode("demo", "demo")
barcode.Symbology = SymbologyType.I2of5
barcode.NarrowBarWidth = 2
barcode.DrawCaption = False
Dim cardIndex = 0
' Create bitmap for the page
Dim pageBitmap = New Bitmap(CType((PaperSize.Width * PrintingResolution), Integer), CType((PaperSize.Height * PrintingResolution), Integer))
pageBitmap.SetResolution(PrintingResolution, PrintingResolution)
Using pageCanvas As Graphics = Graphics.FromImage(pageBitmap)
pageCanvas.InterpolationMode = InterpolationMode.HighQualityBicubic
pageCanvas.CompositingQuality = CompositingQuality.HighQuality
' Setup page units to inches
pageCanvas.PageUnit = GraphicsUnit.Inch
' Fill background with white color
pageCanvas.Clear(Color.White)
' Draw cards
For row As Integer = 0 To 3
For column As Integer = 0 To 3
' Create bitmap for card
Dim cardBitmap = New Bitmap(CType((cardSize.Width * PrintingResolution), Integer), CType((cardSize.Height * PrintingResolution), Integer))
cardBitmap.SetResolution(PrintingResolution, PrintingResolution)
Using cardCanvas As Graphics = Graphics.FromImage(cardBitmap)
' Setup page units to inches
cardCanvas.PageUnit = GraphicsUnit.Inch
' Setup drawing quality
cardCanvas.SmoothingMode = SmoothingMode.HighQuality
cardCanvas.InterpolationMode = InterpolationMode.HighQualityBicubic
cardCanvas.CompositingQuality = CompositingQuality.HighQuality
Dim stringFormat = New StringFormat()
stringFormat.Alignment = StringAlignment.Center
' Draw static labels
cardCanvas.DrawString(strBrand, font1, Brushes.Black, cardSize.Width / 2, 0.1F, stringFormat)
cardCanvas.DrawString(strModel, font2, Brushes.Black, cardSize.Width / 2, 0.4F, stringFormat)
cardCanvas.DrawString(strColor, font1, Brushes.Black, cardSize.Width / 2, 0.7F, stringFormat)
' Generate barcode image
barcode.Value = (barcodeStartValue + cardIndex * barcodeValueStep).ToString()
barcode.PreserveMinReadableSize = False
barcode.ResolutionX = PrintingResolution
barcode.ResolutionY = PrintingResolution
barcode.FitInto(cardSize.Width, 0.5F, UnitOfMeasure.Inch)
Dim barcodeImage = barcode.GetImage()
' Draw barcode
cardCanvas.DrawImage(barcodeImage, 0, 1.0F)
' Draw barcode label
cardCanvas.DrawString(barcode.Value, font3, Brushes.Black, cardSize.Width / 2, 1.4F, stringFormat)
' Draw shoe size label
cardCanvas.DrawString((shoeSizeStart + cardIndex * shoeSizeStep).ToString(), font4, Brushes.Black, _
cardSize.Width / 2, 1.7F, stringFormat)
End Using
' Draw card on the page
pageCanvas.DrawImage(cardBitmap, column * cardSize.Width, row * cardSize.Height)
cardIndex = cardIndex + 1
Next
Next
End Using
Return pageBitmap
End Function
End Class
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