Printing Barcode in VB 6

Mon, 05 Jan 2009 03:06:32 -0700

Hello all,

I need to write VB 6 code for Zebra TLP 2844 barcode printer. I have the printer commands with me but don't know how to send them to the printer. I tried MS Comm control but nothing is printed. I also tried Printer.Print but it printed the text only. I could not find any DLL or anything like that for this printer. I got only the Programming Guide which lists the commands. Below is the code I used. (I got the MS Comm settings code from the net). The commands are working when I tried it with the printer's command window.

Public Sub PrintBarcode()
On Error GoTo eHandler
Dim s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11 As String
s0= & vbLf & "N" & vbLf
s1 = "Q25,3" & vbLf 'Set label size
s2 = "q38" & vbLf 'Label width setting
s3 = "D10" & vbLf 'Set printing darkness
s4 = "S4" & vbLf 'Set printing speed
s5 = "R0" & vbLf 'Set left margin
s6 = "B14,39,0,0,2,5,69,N," & Trim(txtItemCode.Text & "") & vbLf 'barcode

'Text
s7 = "A29,0,0,1,1,2,N," & txtCompName.Text & vbLf
s8 = "A20,137,0,1,1,1,N," & txtItemName.Text & vbLf
s9 = "A97,157,0,1,1,1,N," & "Dhs: " & txtPrice.Text & vbLf
s10 = "P" & Val(txtQty.Text & "") & ",1" & vbLf 'Set how many labels to print, Number of copies of the same label.

'Create a single string for the label output.
s11 = s1 & s2 & s3 & s4 & s5 & s6 & s7 & s8 & s9 & s10
With MSComm1
.CommPort = 1
'set the badurate,parity,databits,stopbits for the connection
.Settings = "9600,n,8,1"
'set the DRT and RTS flags
.DTREnable = True
.RTSEnable = True
'enable the oncomm event for every reveived character
.RThreshold = 1
'disable the oncomm event for send characters
.SThreshold = 1
'open the serial port
.PortOpen = True
'Send the label data to the com port.
' .Settings = "115200,N,8,1" 'Default
.Output = s11
.PortOpen = False

End With
Exit Sub
eHandler:
MsgBox Err.Description, vbOKOnly + vbCritical, "Error"
End Sub

I also tried:

Public Sub PrintBarcode1()
On Error GoTo eHandler
Open "lpt1" For Output As #1

Print #1, vbLf & "N" & vbLf
Print #1, "Q25,3" & vbLf
Print #1, "q38" & vbLf
Print #1, "D10" & vbLf
Print #1, "S4" & vbLf
Print #1, "R0" & vbLf
Print #1, "D10" & vbLf
Print #1, "B14,39,0,0,2,5,69,N," & Trim(txtItemCode.Text) & vbLf
Print #1, "A20,137,0,1,1,1,N," & txtItemName.Text & vbLf
Print #1, "A97,157,0,1,1,1,N," & "Dhs: " & txtPrice.Text & vbLf
Print #1, "A29,0,0,1,1,2,N," & txtCompName.Text & vbLf
Print #1, "P" & Val(txtQty.Text & "") & ",1" & vbLf

Close #1
Exit Sub
eHandler:
MsgBox Err.Description, vbOKOnly + vbCritical, "Error"
End Sub

Both are not working. When I used the second method, the paper is getting inside the printer, but nothing got printed. Please help me to solve this problem. If you can give me the working code, I will be grateful.

Thanks in advance
Sheenit Mathew.

Re: Printing Barcode in VB 6

Fri, 13 Feb 2009 05:58:49 -0700

Try chaning the "lpt1" to the printer name in your second code, it should work. If the escape code are right.

Partha Roy

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Printing Barcode in VB 6

Re: Printing Barcode in VB 6