请问：如何检测打印机是否可用。（C#，WinForm）

Question

http://www.codeproject.com/csharp/printeroffline.aspHow to Check if your Printer is Connected, using C#
PrinterStatus on local and network printers
http://www.dotnet247.com/247reference/msgs/45/229078.aspx
vb.net的，照着修改
add reference to System managementImports System.Management
    Private Enum PrinterStatus
        PrinterIdle = 3
        PrinterPrinting = 4
        PrinterWarmingUp = 5
    End Enum    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim strPrintServer As String
        strPrintServer = "localhost"
        Dim WMIObject As String, PrinterSet As Object, Printer As Object
        WMIObject = "winmgmts://" & strPrintServer
        PrinterSet = GetObject(WMIObject).InstancesOf("win32_Printer")
        For Each Printer In PrinterSet
            MsgBox(Printer.Name & ":  " & PrinterStatusToString(Printer.PrinterStatus))
        Next Printer
    End Sub
    Private Function PrinterStatusToString(ByVal ps As PrinterStatus) As String
        Dim s As String
        Select Case ps
            Case PrinterStatus.PrinterIdle
                s = "waiting (idle)"
            Case PrinterStatus.PrinterPrinting
                s = "printing"
            Case PrinterStatus.PrinterWarmingUp
                s = "warming up"
            Case Else   
                s = "unknown state"
        End Select
        PrinterStatusToString = s
    End Function

Answer 1

public string GetPrinterStatus ()
        {
            string printStatus = "No default printer installed";
            ManagementObjectCollection printers = new ManagementClass( "Win32_Printer" ).GetInstances();
            foreach( ManagementObject printer in printers )
            {
                // if ( printer["Default"] ) { //this works only in WinXP version
                // an alternative to "PrinterStatus" would be "Availability"
                switch ( printer["PrinterStatus"].ToString() )
                {
                    case "1": printStatus = "Other"; break;
                    case "2": printStatus = "Unknown"; break;
                    case "3": printStatus = "Idle"; break;
                    case "4": printStatus = "Printing"; break;
                    case "5": printStatus = "Warmup"; break;
                    case "6": printStatus = "Stopped"; break;
                    case "7": printStatus = "Offline"; break;
                }
//                }
            }
            this.PrinterStatus = printStatus;
            return printStatus;
        }

Answer 2

谢谢 net_lover(孟子E章) ：但好像，没纸了； 还是缺纸了这样详细的状态没办法取得。可以吗？