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checking status of printer in vb.net

Posted on 2004-04-15
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Last Modified: 2013-10-21
Can someone show me some code that allows me to check the status of an attached printer. I need to know when the print queue is empty, or when the printer is finished printing.

Thanks,
Rut
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Question by:rutledgj
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3 Comments
 
LVL 28

Accepted Solution

by:
iboutchkine earned 125 total points
ID: 10834131
add reference to System management

Imports 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
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Author Comment

by:rutledgj
ID: 10835931
This solution worked great but I got an error trying to import system.management. I just left it out and it worked.
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Expert Comment

by:sphairos
ID: 39590080
Hi

I tried your code and it's working well, but when I want to check wether the status is changing while I pass it from "idle" to "printing" it still does display "idle" despite the printer is "printing"...

What did I miss ?
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