VB6 获取和设置默认打印机

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Private Declare Function GetProfileString Lib "kernel32" Alias "GetProfileStringA" (ByVal lpAppName As String,ByVal lpKeyName As String,ByVal lpDefault As String,ByVal lpReturnedString As String,ByVal nSize As Long) As Long Function GetdeviceName() As String Dim di As String def$ = String(128,0) di = GetProfileString("WINDOWS","DEVICE","",def$,127) GetdeviceName = Trim(def$) GetdeviceName = Left(GetdeviceName,instr(GetdeviceName,",") - 1) End Function Private Sub Command1_Click() Dim a As String MsgBox GetdeviceName a = GetdeviceName() Call setDefaultPrinter_To_System("PDF995") End Sub Public Sub setDefaultPrinter_To_System(devcName As String) Dim X As Printer Dim WshNetwork As Object Dim k As Long k = 0 For Each X In Printers If X.deviceName = devcName Then ' Set printer as system default. Set Printer = X Set WshNetwork = CreateObject("WScript.Network") WshNetwork.setDefaultPrinter (Printers(k).deviceName) ' Stop looking for a printer. Exit For End If k = k + 1 Next End Sub

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