Hello,
Raymond Martin said:
How do I find out if the default printer is offline or online (or has a
paper jam)?
\\\
Private Enum PrinterStatus
PrinterIdle = 3
PrinterPrinting = 4
PrinterWarmingUp = 5
' For more states see WMI docs.
End Enum
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 ' Vielleicht gibt es noch weitere Fälle...
s = "unknown state"
End Select
Return s
End Function
Private Sub Form1_Load( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs _
) Handles MyBase.Load
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
///
Documentation of WMI classes:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/wmi_classes.asp
HTH,
Herfried K. Wagner