系统中须要在浏览器，直接调用条码打印机，打印出产品条码。

现实中的条码打印机，品种繁多，非常难在一个程序中实现， 于是我们用已经支持全部条码打印机的bartender软件

调用它的api ，来实如今浏览器中打印条码。

以下是 代码实现：

Private Sub UserControl_Initialize()
'On Error Resume Next
Dim app1 As BarTender.Application
Set app1 = CreateObject("BarTender.Application")
app1.Quit



If Err.Number <> 0 Then
MsgBox ("您还没有安装bartender,请点击《条码打印说明》中的下载链接下载安装。")
End If
Err.Clear

'Dim fso As Object
'Set fso = CreateObject("scripting.filesystemobject")

Dim fso As New Scripting.FileSystemObject
If fso.FileExists("c:\sun.btw") = True Then
path = "c:\sunsky1.btw"
Else
If fso.FileExists("d:\sun.btw") = True Then
path = "d:\sun.btw"
Else
On Error Resume Next
Err.Clear

DownNetFile "http://www.erwm.org/suns.btw", "c:\sun.btw"
path = "c:\sunsky1.btw"
If Err.Number <> 0 Then
Err.Clear

DownNetFile "http://www.erwm.org/sun.btw", "d:\sun.btw"
path = "d:\sunsky1.btw"
If Err.Number <> 0 Then
MsgBox ("您还没有下载打印模版,请点击《条码打印说明》中的下载链接下载安装。")
End If
End If
End If
End If
End Sub

Public Sub printone(ordernumber As String, itemnumber As String, qty As String, barcode As String, isshow As String)

Dim Format As BarTender.Format
Set app = CreateObject("BarTender.Application")
Set Format = app.Formats.Open(path)

Format.SetNamedSubStringValue "barcode", barcode
Format.SetNamedSubStringValue "ordernumber", ordernumber
Format.SetNamedSubStringValue "qty", qty
Format.SetNamedSubStringValue "itemnumber", itemnumber
If isshow = "1" Then
Format.PrintOut True, True
Else
Format.PrintOut
End If
Format.Close btDoNotSaveChanges
app.Quit
End Sub

Public Function isgood() As String
On Error Resume Next




End Function

Private Sub DownNetFile(ByVal nUrl As String, ByVal nFile As String)
Dim XmlHttp, B() As Byte
Set XmlHttp = CreateObject("Microsoft.XMLHTTP")
XmlHttp.Open "GET", nUrl, False
XmlHttp.Send
If XmlHttp.ReadyState = 4 Then
B() = XmlHttp.ResponseBody
Open nFile For Binary As #1
Put #1, , B()
Close #1
End If
Set XmlHttp = Nothing
End Sub

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