ByteScout Premium Suite – Visual Basic 6 – Printing barcodes with barcode sdk

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ByteScout Premium Suite – Visual Basic 6 – Printing barcodes with barcode sdk

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ByteScout-Premium-Suite-Visual-Basic-6-Printing-barcodes-with-barcode-sdk.pdf

printing barcodes with barcode sdk in Visual Basic 6 with ByteScout Premium Suite

How to apply ByteScout Premium Suite for printing barcodes with barcode sdk in Visual Basic 6

Every ByteScout tool includes sampleVisual Basic 6 source codes that you can find here or in the folder with installed ByteScout product. Printing barcodes with barcode sdk in Visual Basic 6 can be applied with ByteScout Premium Suite. ByteScout Premium Suite is the set that includes 12 SDK products from ByteScout including tools and components for PDF, barcodes, spreadsheets, screen video recording.

Save time on writing and testing code by using the code below and use it in your application. If you want to know how it works, then this Visual Basic 6 sample code should be copied and pasted into your application’s code editor. Then just compile and run it. Further improvement of the code will make it more robust.

Trial version along with the source code samples for Visual Basic 6 can be downloaded from our website

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Form1.frm

      VERSION 5.00
Begin VB.Form Form1 
   AutoRedraw      =   -1  'True
   Caption         =   "Form1"
   ClientHeight    =   2175
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   7770
   LinkTopic       =   "Form1"
   ScaleHeight     =   2175
   ScaleWidth      =   7770
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "Print Barcode to the selected printer with 300 DPI quality and physycal size (4x1 inches)"
      Height          =   855
      Left            =   120
      TabIndex        =   1
      Top             =   840
      Width           =   6975
   End
   Begin VB.ComboBox cboPrinterList 
      Height          =   315
      Left            =   120
      TabIndex        =   0
      Top             =   360
      Width           =   6975
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub Command1_Click()
  ' set printer to the selected printer
  Call SelectPrinter(cboPrinterList.Text)
  ' call function to print barcode to Printer object
 Call PrintBarCode
End Sub

 
' populate list of printers on form load
Private Sub Form_Load()

Dim dev As Printer, Index As Integer, CurrentPrinter As Integer
CurrentPrinter = -1
Index = 0
For Each dev In Printers
cboPrinterList.AddItem dev.DeviceName
If Printer.DeviceName = dev.DeviceName Then
CurrentPrinter = Index
End If
       Index = Index + 1
Next
If CurrentPrinter <> -1 Then
 cboPrinterList.ListIndex = CurrentPrinter
End If

End Sub
 
'===========================
'Function to select printer
'===========================

Function SelectPrinter(ByVal printer_name As String) As Boolean
    Dim i As Integer

    SelectPrinter = False
    For i = 0 To Printers.Count - 1
        ' if the specified printer is found, select it and return True
        If Printers(i).DeviceName = printer_name Then
            Set Printer = Printers(i)
            SelectPrinter = True
            Exit For
        End If
    Next i
End Function


' print barcode to the Printer object

Private Sub PrintBarCode()
 
' this method prints a barcode via temporary EMF metafile allowing to set target physical size and DPI resolution quality

Const DPIQuality = 300 ' 300 DPI as printing resolution (DPI) quality
Const WidthInInches = 4 ' 4 inches as width for the barcode generated
Const HeightInInches = 1 ' 1 inches as height for the barcode generated

 ' create barcode object as ActiveX
 Dim BC
 Set BC = CreateObject("Bytescout.BarCode.Barcode")

 Printer.PrintQuality = DPIQuality ' set the printer quality to 300 dpi

 ' IMPORTANT: call Printer.Print Space(1) to initialize the Printer
 ' this is how Microsoft advises to do in their KB article (search for Printer.Print string): http://support.microsoft.com/kb/146022
 Printer.Print Space(1) ' initialize hDC of Printer object
 
 ' set the same DPI resolution (300 DPI) to generate barcode image
 BC.ResolutionX = DPIQuality
 BC.ResolutionY = DPIQuality
 
 ' set barcode symbology type
 BC.Symbology = 0 ' Code 39 = 0 (see the documentation for other barcode types)
 
 ' set barcode value
 BC.Value = "1234567890"
 
 
 ' use .FitInto_3 method to set the size in inches (you can also set in mm, cm, pixels - see the documentation for more)
 BC.FitInto_3 WidthInInches, HeightInInches, 2 ' fit into 3.5x0.875 inches (2 = inch)
  
' save barcode into temprorary EMF image

' create FileSystemObject to work with files
Dim FSO As Object
Set FSO = CreateObject("Scripting.filesystemobject")

' get temporary filename to save a temporary .EMF file
Dim tempEMFFileName
tempEMFFileName = FSO.GetTempName() & ".EMF"

' save EMF metafile into the temporary file
BC.SaveImage tempEMFFileName

' now we paint EMF file to Printer object
' default units for Printer in VB6 is Twips, which is 1440 per Inch
' so we calculate 3.5 inches as 3.5 * TwipsPerInch
Const TwipsPerInch = 1440
' now printing the picture at 0,0 with 3.5 inches X 0.875 inches
Printer.PaintPicture LoadPicture(tempEMFFileName), 0, 200, 3.5 * TwipsPerInch, 0.875 * TwipsPerInch

' now remove temporary EMF file
FSO.deletefile tempEMFFileName, True
Set FSO = Nothing
 
 ' finally send command to print the page
Printer.EndDoc
 
Set BC = Nothing


End Sub

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Project1.vbp

      Type=Exe
Reference=*\G{00020430-0000-0000-C000-000000000046}#2.0#0#C:\WINDOWS\system32\stdole2.tlb#OLE Automation
Form=Form1.frm
Startup="Form1"
ExeName32="Project1.exe"
Command32=""
Name="Project1"
HelpContextID="0"
CompatibleMode="0"
MajorVer=1
MinorVer=0
RevisionVer=0
AutoIncrementVer=0
ServerSupportFiles=0
VersionCompanyName="000"
CompilationType=0
OptimizationType=0
FavorPentiumPro(tm)=0
CodeViewDebugInfo=0
NoAliasing=0
BoundsCheck=0
OverflowCheck=0
FlPointCheck=0
FDIVCheck=0
UnroundedFP=0
StartMode=0
Unattended=0
Retained=0
ThreadPerObject=0
MaxNumberOfThreads=1

[MS Transaction Server]
AutoRefresh=1