static extern bool EnumPrinters(int flags, string name, int level, IntPtr pPrinterEnum, int cbBuf, out int pcbNeeded, out int pcReturned);
[DllImport("winspool.drv", CharSet=CharSet.Auto)] static extern bool EnumPrinters(int flags, string name, int level, IntPtr pPrinterEnum,int cbBuf, out int pcbNeeded, out int pcReturned);
Imports System.DirectoryServices Imports System.Management Public Class HowToSearchPrinter Public Shared Function NetPrinters(ByVal GetWay As GetComputer) As String() Dim mResult(-1) As String Dim mPrinterFormat As String = "Computer:{0} Printer:{1}" Dim mNetComputerNames(-1) As String Select Case GetWay Case GetComputer.Simple mNetComputerNames = GetNetComputerNames() Case GetComputer.Ping mNetComputerNames = GetNetComputerNamesByPing() End Select For Each mComputer As String In mNetComputerNames For Each mPrinter As String In GetPrinterName(mComputer) ReDim Preserve mResult(mResult.Length) mResult(mResult.Length - 1) = String.Format(mPrinterFormat, mComputer, mPrinter) Next Next Return mResult End Function '这里不保证得到所有的计算机 Private Shared Function GetNetComputerNames() As String() Dim mResult(-1) As String Dim root As DirectoryEntry = New DirectoryEntry("WinNT:") For Each Domain As DirectoryEntry In root.Children '枚举工作组或域 For Each Computer As DirectoryEntry In Domain.Children '枚举指定工作组或域的计算机 If Computer.SchemaClassName.Equals("Computer") Then ReDim Preserve mResult(mResult.Length) mResult(mResult.Length - 1) = Computer.Name End If Next Next Return mResult End Function '这倒是可以得到所有的计算机,可是也太慢了 Private Shared Function GetNetComputerNamesByPing() As String() If Not My.Computer.Network.IsAvailable Then Return Nothing Dim Result(-1) As String Dim PingFormat As String = "192.168.0.{0}" For i As Integer = 1 To 254 If My.Computer.Network.Ping(String.Format(PingFormat, i), 100) Then ReDim Preserve Result(Result.Length) Result(Result.Length - 1) = Net.Dns.GetHostEntry(String.Format(PingFormat, i)).HostName '这个方法是Net2.0 End If Next Return Result End Function Private Shared Function GetPrinterName(ByVal computerName As String) As String() Dim mResult(-1) As String Dim o As New ManagementObject o.Scope = New ManagementScope(String.Format("\\{0}\root\cimv2", computerName)) Dim mSearch As New ManagementObjectSearcher(String.Format("SELECT DeviceID FROM {0}", "Win32_Printer")) mSearch.Scope = o.Scope Try For Each mManagementObject As ManagementObject In mSearch.Get() ReDim Preserve mResult(mResult.Length) mResult(mResult.Length - 1) = System.Text.RegularExpressions.Regex.Replace(mManagementObject.ToString, ".*""(.*)""", "${1}") Next Catch ex As Exception Console.WriteLine(ex.Message) Finally mSearch.Dispose() o.Dispose() End Try Return mResult End Function Public Enum GetComputer Simple Ping End Enum End Class测试: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click For Each s As String In HowToSearchPrinter.NetPrinters(HowToSearchPrinter.GetComputer.Simple) Console.WriteLine(s) Next End Sub 结果: Computer:FK-A05-01 Printer:hp LaserJet 1000 DOS Computer:FK-A05-01 Printer:hp LaserJet 1000 (副本 3) Computer:FK-A05-01 Printer:hp LaserJet 1000 Computer:FK-A05-01 Printer:EPSON AL-C8600 Advanced Computer:FK-A09-05 Printer:在 PK 上自动 Canon LBP-810 Computer:FK-A09-05 Printer:OKi5530结算单 Computer:FK-A09-05 Printer:OKi5530 Computer:FK-A09-05 Printer:Microsoft Office Document Image Writer Computer:FK-A09-05 Printer:EPSON LQ-1600KIII Computer:PK Printer:Tencent Virtual Printer Computer:PK Printer:Canon LBP-810
http://www.ddvip.net/program/c-/index5/18.htm
楼主要的是网络打印机,呵呵~~~
参考:
http://www.njpro.cn/494/ShowPost.aspx
http://www.njpro.cn/494/ShowPost.aspx
------------------------------------------------------------------ pInfo.Name = Marshal.PtrToStringAuto(pi.pName);
pInfo.Description = Marshal.PtrToStringAuto(pi.pDescription);
pInfo.Comment = Marshal.PtrToStringAuto(pi.pComment); 这三个属性找不到。
http://community.csdn.net/Expert/topic/4331/4331547.xml?temp=.589245
static extern bool EnumPrinters(int flags, string name, int level, IntPtr pPrinterEnum,
int cbBuf, out int pcbNeeded, out int pcReturned);
static extern bool EnumPrinters(int flags, string name, int level, IntPtr pPrinterEnum,int cbBuf, out int pcbNeeded, out int pcReturned);
Imports System.Management
Public Class HowToSearchPrinter Public Shared Function NetPrinters(ByVal GetWay As GetComputer) As String()
Dim mResult(-1) As String
Dim mPrinterFormat As String = "Computer:{0} Printer:{1}"
Dim mNetComputerNames(-1) As String Select Case GetWay
Case GetComputer.Simple
mNetComputerNames = GetNetComputerNames()
Case GetComputer.Ping
mNetComputerNames = GetNetComputerNamesByPing()
End Select For Each mComputer As String In mNetComputerNames
For Each mPrinter As String In GetPrinterName(mComputer)
ReDim Preserve mResult(mResult.Length)
mResult(mResult.Length - 1) = String.Format(mPrinterFormat, mComputer, mPrinter)
Next
Next Return mResult
End Function '这里不保证得到所有的计算机
Private Shared Function GetNetComputerNames() As String()
Dim mResult(-1) As String Dim root As DirectoryEntry = New DirectoryEntry("WinNT:")
For Each Domain As DirectoryEntry In root.Children
'枚举工作组或域
For Each Computer As DirectoryEntry In Domain.Children
'枚举指定工作组或域的计算机
If Computer.SchemaClassName.Equals("Computer") Then
ReDim Preserve mResult(mResult.Length)
mResult(mResult.Length - 1) = Computer.Name
End If
Next
Next
Return mResult
End Function '这倒是可以得到所有的计算机,可是也太慢了
Private Shared Function GetNetComputerNamesByPing() As String()
If Not My.Computer.Network.IsAvailable Then Return Nothing
Dim Result(-1) As String
Dim PingFormat As String = "192.168.0.{0}"
For i As Integer = 1 To 254
If My.Computer.Network.Ping(String.Format(PingFormat, i), 100) Then
ReDim Preserve Result(Result.Length)
Result(Result.Length - 1) = Net.Dns.GetHostEntry(String.Format(PingFormat, i)).HostName '这个方法是Net2.0
End If
Next
Return Result
End Function Private Shared Function GetPrinterName(ByVal computerName As String) As String()
Dim mResult(-1) As String Dim o As New ManagementObject
o.Scope = New ManagementScope(String.Format("\\{0}\root\cimv2", computerName))
Dim mSearch As New ManagementObjectSearcher(String.Format("SELECT DeviceID FROM {0}", "Win32_Printer"))
mSearch.Scope = o.Scope
Try
For Each mManagementObject As ManagementObject In mSearch.Get()
ReDim Preserve mResult(mResult.Length)
mResult(mResult.Length - 1) = System.Text.RegularExpressions.Regex.Replace(mManagementObject.ToString, ".*""(.*)""", "${1}")
Next
Catch ex As Exception
Console.WriteLine(ex.Message)
Finally
mSearch.Dispose()
o.Dispose()
End Try Return mResult
End Function Public Enum GetComputer
Simple
Ping
End Enum
End Class测试:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
For Each s As String In HowToSearchPrinter.NetPrinters(HowToSearchPrinter.GetComputer.Simple)
Console.WriteLine(s)
Next
End Sub
结果:
Computer:FK-A05-01 Printer:hp LaserJet 1000 DOS
Computer:FK-A05-01 Printer:hp LaserJet 1000 (副本 3)
Computer:FK-A05-01 Printer:hp LaserJet 1000
Computer:FK-A05-01 Printer:EPSON AL-C8600 Advanced
Computer:FK-A09-05 Printer:在 PK 上自动 Canon LBP-810
Computer:FK-A09-05 Printer:OKi5530结算单
Computer:FK-A09-05 Printer:OKi5530
Computer:FK-A09-05 Printer:Microsoft Office Document Image Writer
Computer:FK-A09-05 Printer:EPSON LQ-1600KIII
Computer:PK Printer:Tencent Virtual Printer
Computer:PK Printer:Canon LBP-810