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Comment : diagnostiquer un travail d'impression problématique

Les administrateurs réseau reçoivent souvent des plaintes d’utilisateurs concernant des travaux d’impression qui échouent ou s’impriment lentement. L’ensemble complet de propriétés de travail d’impression exposées dans les API de Microsoft .NET Framework fournit un moyen d’effectuer un diagnostic à distance rapide des travaux d’impression.

Exemple

Voici les principales étapes à suivre pour créer ce type d’utilitaire.

  1. Identifiez le travail d’impression à l’origine de la plainte de l’utilisateur. Les utilisateurs sont rarement en mesure de l’identifier avec précision. Ils peuvent par exemple ne pas connaître les noms des serveurs d’impression ou des imprimantes. Ils peuvent décrire l’emplacement de l’imprimante dans une terminologie différente de celle utilisée pour définir sa Location propriété. Par conséquent, il est judicieux de générer une liste des travaux envoyés par l’utilisateur. S’il y en a plusieurs, l’utilisateur peut contacter l’administrateur du système d’impression pour identifier le travail qui pose problème. La procédure est la suivante.

    1. Répertoriez l’ensemble des serveurs d’impression.

    2. Parcourez les serveurs en boucle pour interroger leurs files d’attente à l’impression.

    3. À chaque étape de la boucle de serveur, parcourez en boucle toutes les files d’attente du serveur pour interroger les travaux associés.

    4. À chaque étape de la boucle de file d’attente, parcourez les travaux associés et collectez les informations d’identification des travaux ayant été envoyés par l’utilisateur à l’origine de la plainte.

  2. Une fois le travail d’impression problématique identifié, examinez les propriétés pertinentes pour tenter de trouver ce qui pose problème. Le travail affiche-t-il un état d’erreur ou l’imprimante qui traite la file d’attente a-t-elle été déconnectée avant l’impression du travail ?

Le code ci-dessous constitue une série d’exemples de code. Le premier exemple de code contient la boucle d’exécution des files d’attente à l’impression. (Étape 1c ci-dessus.) La variable myPrintQueues est l’objet PrintQueueCollection du serveur d’impression actuel.

L’exemple de code commence par actualiser l’objet file d’attente d’impression actuel avec PrintQueue.Refresh. Cela permet de s’assurer que les propriétés de l’objet représentent avec exactitude l’état de l’imprimante physique à laquelle l’objet est associé. L’application obtient ensuite la collection de travaux d’impression actuellement dans la file d’attente d’impression à l’aide GetPrintJobInfoCollectionde .

Ensuite, l’application effectue une boucle dans la PrintSystemJobInfo collection et compare chaque Submitter propriété avec l’alias de l’utilisateur qui se plaint. En cas de correspondance, l’application ajoute les informations d’identification sur le travail dans la chaîne qui s’affiche. (Les variables userName et jobList sont initialisées plus tôt dans l’application.)

for each (PrintQueue^ pq in myPrintQueues)
{
   pq->Refresh();
   PrintJobInfoCollection^ jobs = pq->GetPrintJobInfoCollection();
   for each (PrintSystemJobInfo^ job in jobs)
   {
      // Since the user may not be able to articulate which job is problematic,
      // present information about each job the user has submitted.
      if (job->Submitter == userName)
      {
         atLeastOne = true;
         jobList = jobList + "\nServer:" + line;
         jobList = jobList + "\n\tQueue:" + pq->Name;
         jobList = jobList + "\n\tLocation:" + pq->Location;
         jobList = jobList + "\n\t\tJob: " + job->JobName + " ID: " + job->JobIdentifier;
      }
   }
}
foreach (PrintQueue pq in myPrintQueues)
{
    pq.Refresh();
    PrintJobInfoCollection jobs = pq.GetPrintJobInfoCollection();
    foreach (PrintSystemJobInfo job in jobs)
    {
        // Since the user may not be able to articulate which job is problematic,
        // present information about each job the user has submitted.
        if (job.Submitter == userName)
        {
            atLeastOne = true;
            jobList = jobList + "\nServer:" + line;
            jobList = jobList + "\n\tQueue:" + pq.Name;
            jobList = jobList + "\n\tLocation:" + pq.Location;
            jobList = jobList + "\n\t\tJob: " + job.JobName + " ID: " + job.JobIdentifier;
        }
    }// end for each print job
}// end for each print queue
For Each pq As PrintQueue In myPrintQueues
    pq.Refresh()
    Dim jobs As PrintJobInfoCollection = pq.GetPrintJobInfoCollection()
    For Each job As PrintSystemJobInfo In jobs
        ' Since the user may not be able to articulate which job is problematic,
        ' present information about each job the user has submitted.
        If job.Submitter = userName Then
            atLeastOne = True
            jobList = jobList & vbLf & "Server:" & line
            jobList = jobList & vbLf & vbTab & "Queue:" & pq.Name
            jobList = jobList & vbLf & vbTab & "Location:" & pq.Location
            jobList = jobList & vbLf & vbTab & vbTab & "Job: " & job.JobName & " ID: " & job.JobIdentifier
        End If
    Next job ' end for each print job

Next pq ' end for each print queue

L’exemple de code suivant récupère l’application à l’étape 2. (Voir ci-dessus.) Le travail problématique a été identifié et l’application demande les informations qui l’identifieront. À partir de ces informations, il crée PrintServer, PrintQueueet PrintSystemJobInfo des objets.

À ce stade, l’application contient une structure en branches correspondant aux deux méthodes de vérification de l’état du travail d’impression :

Cet exemple illustre les deux méthodes, de sorte que l’utilisateur a été invité précédemment à indiquer quelle méthode utiliser et répondre avec « Y » s’il voulait utiliser les indicateurs de la JobStatus propriété. Voir ci-dessous pour obtenir des informations détaillées sur les deux méthodes. Enfin, l’application utilise une méthode appelée ReportQueueAndJobAvailability pour déterminer si le travail peut être imprimé à cette heure de la journée. Cette méthode est décrite dans l’article Déterminer si un travail d’impression peut être imprimé à cette heure de la journée.

// When the problematic print job has been identified, enter information about it.
Console::Write("\nEnter the print server hosting the job (including leading slashes \\\\): " + "\n(press Return for the current computer \\\\{0}): ", Environment::MachineName);
String^ pServer = Console::ReadLine();
if (pServer == "")
{
   pServer = "\\\\" + Environment::MachineName;
}
Console::Write("\nEnter the print queue hosting the job: ");
String^ pQueue = Console::ReadLine();
Console::Write("\nEnter the job ID: ");
Int16 jobID = Convert::ToInt16(Console::ReadLine());

// Create objects to represent the server, queue, and print job.
PrintServer^ hostingServer = gcnew PrintServer(pServer, PrintSystemDesiredAccess::AdministrateServer);
PrintQueue^ hostingQueue = gcnew PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess::AdministratePrinter);
PrintSystemJobInfo^ theJob = hostingQueue->GetJob(jobID);

if (useAttributesResponse == "Y")
{
   TroubleSpotter::SpotTroubleUsingJobAttributes(theJob);
   // TroubleSpotter class is defined in the complete example.
} else
{
   TroubleSpotter::SpotTroubleUsingProperties(theJob);
}

TroubleSpotter::ReportQueueAndJobAvailability(theJob);
// When the problematic print job has been identified, enter information about it.
Console.Write("\nEnter the print server hosting the job (including leading slashes \\\\): " +
"\n(press Return for the current computer \\\\{0}): ", Environment.MachineName);
String pServer = Console.ReadLine();
if (pServer == "")
{
    pServer = "\\\\" +Environment.MachineName;
}
Console.Write("\nEnter the print queue hosting the job: ");
String pQueue = Console.ReadLine();
Console.Write("\nEnter the job ID: ");
Int16 jobID = Convert.ToInt16(Console.ReadLine());

// Create objects to represent the server, queue, and print job.
PrintServer hostingServer = new PrintServer(pServer, PrintSystemDesiredAccess.AdministrateServer);
PrintQueue hostingQueue = new PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess.AdministratePrinter);
PrintSystemJobInfo theJob = hostingQueue.GetJob(jobID);

if (useAttributesResponse == "Y")
{
    TroubleSpotter.SpotTroubleUsingJobAttributes(theJob);
    // TroubleSpotter class is defined in the complete example.
}
else
{
    TroubleSpotter.SpotTroubleUsingProperties(theJob);
}

TroubleSpotter.ReportQueueAndJobAvailability(theJob);
' When the problematic print job has been identified, enter information about it.
Console.Write(vbLf & "Enter the print server hosting the job (including leading slashes \\): " & vbLf & "(press Return for the current computer \\{0}): ", Environment.MachineName)
Dim pServer As String = Console.ReadLine()
If pServer = "" Then
    pServer = "\\" & Environment.MachineName
End If
Console.Write(vbLf & "Enter the print queue hosting the job: ")
Dim pQueue As String = Console.ReadLine()
Console.Write(vbLf & "Enter the job ID: ")
Dim jobID As Int16 = Convert.ToInt16(Console.ReadLine())

' Create objects to represent the server, queue, and print job.
Dim hostingServer As New PrintServer(pServer, PrintSystemDesiredAccess.AdministrateServer)
Dim hostingQueue As New PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess.AdministratePrinter)
Dim theJob As PrintSystemJobInfo = hostingQueue.GetJob(jobID)

If useAttributesResponse = "Y" Then
    TroubleSpotter.SpotTroubleUsingJobAttributes(theJob)
    ' TroubleSpotter class is defined in the complete example.
Else
    TroubleSpotter.SpotTroubleUsingProperties(theJob)
End If

TroubleSpotter.ReportQueueAndJobAvailability(theJob)

Pour case activée’état de la tâche d’impression à l’aide des indicateurs de la JobStatus propriété, vous case activée chaque indicateur approprié pour voir s’il est défini. La méthode standard pour voir si un bit est défini dans un ensemble d’indicateurs binaires consiste à effectuer une opération AND logique en utilisant comme opérandes l’ensemble d’indicateurs et l’indicateur lui-même. Étant donné que l’indicateur lui-même n’a qu’un seul bit de défini, l’opération AND logique ne peut pas trouver plus d’un même bit défini. Pour savoir si c’est bien le cas, il suffit de comparer le résultat de l’opération AND logique avec l’indicateur lui-même. Pour plus d’informations, consultez PrintJobStatus, l’opérateur > (référence C#) et FlagsAttribute.

Pour chaque attribut dont le bit est défini, le code l’indique sur l’écran de la console et propose parfois une réponse possible. (La méthode HandlePausedJob qui est appelée si le travail ou la file d’attente est suspendu(e) est décrite ci-après.)

// Check for possible trouble states of a print job using the flags of the JobStatus property
static void SpotTroubleUsingJobAttributes (PrintSystemJobInfo^ theJob) 
{
   if ((theJob->JobStatus & PrintJobStatus::Blocked) == PrintJobStatus::Blocked)
   {
      Console::WriteLine("The job is blocked.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Completed) == PrintJobStatus::Completed)
      || 
      ((theJob->JobStatus & PrintJobStatus::Printed) == PrintJobStatus::Printed))
   {
      Console::WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Deleted) == PrintJobStatus::Deleted)
      || 
      ((theJob->JobStatus & PrintJobStatus::Deleting) == PrintJobStatus::Deleting))
   {
      Console::WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Error) == PrintJobStatus::Error)
   {
      Console::WriteLine("The job has errored.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Offline) == PrintJobStatus::Offline)
   {
      Console::WriteLine("The printer is offline. Have user put it online with printer front panel.");
   }
   if ((theJob->JobStatus & PrintJobStatus::PaperOut) == PrintJobStatus::PaperOut)
   {
      Console::WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Paused) == PrintJobStatus::Paused)
      || 
      ((theJob->HostingPrintQueue->QueueStatus & PrintQueueStatus::Paused) == PrintQueueStatus::Paused))
   {
      HandlePausedJob(theJob);
      //HandlePausedJob is defined in the complete example.
   }

   if ((theJob->JobStatus & PrintJobStatus::Printing) == PrintJobStatus::Printing)
   {
      Console::WriteLine("The job is printing now.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Spooling) == PrintJobStatus::Spooling)
   {
      Console::WriteLine("The job is spooling now.");
   }
   if ((theJob->JobStatus & PrintJobStatus::UserIntervention) == PrintJobStatus::UserIntervention)
   {
      Console::WriteLine("The printer needs human intervention.");
   }
};
// Check for possible trouble states of a print job using the flags of the JobStatus property
internal static void SpotTroubleUsingJobAttributes(PrintSystemJobInfo theJob)
{
    if ((theJob.JobStatus & PrintJobStatus.Blocked) == PrintJobStatus.Blocked)
    {
        Console.WriteLine("The job is blocked.");
    }
    if (((theJob.JobStatus & PrintJobStatus.Completed) == PrintJobStatus.Completed)
        ||
        ((theJob.JobStatus & PrintJobStatus.Printed) == PrintJobStatus.Printed))
    {
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
    }
    if (((theJob.JobStatus & PrintJobStatus.Deleted) == PrintJobStatus.Deleted)
        ||
        ((theJob.JobStatus & PrintJobStatus.Deleting) == PrintJobStatus.Deleting))
    {
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Error) == PrintJobStatus.Error)
    {
        Console.WriteLine("The job has errored.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Offline) == PrintJobStatus.Offline)
    {
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.");
    }
    if ((theJob.JobStatus & PrintJobStatus.PaperOut) == PrintJobStatus.PaperOut)
    {
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
    }

    if (((theJob.JobStatus & PrintJobStatus.Paused) == PrintJobStatus.Paused)
        ||
        ((theJob.HostingPrintQueue.QueueStatus & PrintQueueStatus.Paused) == PrintQueueStatus.Paused))
    {
        HandlePausedJob(theJob);
        //HandlePausedJob is defined in the complete example.
    }

    if ((theJob.JobStatus & PrintJobStatus.Printing) == PrintJobStatus.Printing)
    {
        Console.WriteLine("The job is printing now.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Spooling) == PrintJobStatus.Spooling)
    {
        Console.WriteLine("The job is spooling now.");
    }
    if ((theJob.JobStatus & PrintJobStatus.UserIntervention) == PrintJobStatus.UserIntervention)
    {
        Console.WriteLine("The printer needs human intervention.");
    }
}//end SpotTroubleUsingJobAttributes
' Check for possible trouble states of a print job using the flags of the JobStatus property
Friend Shared Sub SpotTroubleUsingJobAttributes(ByVal theJob As PrintSystemJobInfo)
    If (theJob.JobStatus And PrintJobStatus.Blocked) = PrintJobStatus.Blocked Then
        Console.WriteLine("The job is blocked.")
    End If
    If ((theJob.JobStatus And PrintJobStatus.Completed) = PrintJobStatus.Completed) OrElse ((theJob.JobStatus And PrintJobStatus.Printed) = PrintJobStatus.Printed) Then
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.")
    End If
    If ((theJob.JobStatus And PrintJobStatus.Deleted) = PrintJobStatus.Deleted) OrElse ((theJob.JobStatus And PrintJobStatus.Deleting) = PrintJobStatus.Deleting) Then
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Error) = PrintJobStatus.Error Then
        Console.WriteLine("The job has errored.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Offline) = PrintJobStatus.Offline Then
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.")
    End If
    If (theJob.JobStatus And PrintJobStatus.PaperOut) = PrintJobStatus.PaperOut Then
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.")
    End If

    If ((theJob.JobStatus And PrintJobStatus.Paused) = PrintJobStatus.Paused) OrElse ((theJob.HostingPrintQueue.QueueStatus And PrintQueueStatus.Paused) = PrintQueueStatus.Paused) Then
        HandlePausedJob(theJob)
        'HandlePausedJob is defined in the complete example.
    End If

    If (theJob.JobStatus And PrintJobStatus.Printing) = PrintJobStatus.Printing Then
        Console.WriteLine("The job is printing now.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Spooling) = PrintJobStatus.Spooling Then
        Console.WriteLine("The job is spooling now.")
    End If
    If (theJob.JobStatus And PrintJobStatus.UserIntervention) = PrintJobStatus.UserIntervention Then
        Console.WriteLine("The printer needs human intervention.")
    End If

End Sub

Pour vérifier l’état du travail d’impression à l’aide de propriétés distinctes, il vous suffit de lire chaque propriété, et si la propriété est true, de l’indiquer sur l’écran de la console et de proposer éventuellement une réponse possible. (La méthode HandlePausedJob qui est appelée si le travail ou la file d’attente est suspendu(e) est décrite ci-après.)

// Check for possible trouble states of a print job using its properties
static void SpotTroubleUsingProperties (PrintSystemJobInfo^ theJob) 
{
   if (theJob->IsBlocked)
   {
      Console::WriteLine("The job is blocked.");
   }
   if (theJob->IsCompleted || theJob->IsPrinted)
   {
      Console::WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
   }
   if (theJob->IsDeleted || theJob->IsDeleting)
   {
      Console::WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
   }
   if (theJob->IsInError)
   {
      Console::WriteLine("The job has errored.");
   }
   if (theJob->IsOffline)
   {
      Console::WriteLine("The printer is offline. Have user put it online with printer front panel.");
   }
   if (theJob->IsPaperOut)
   {
      Console::WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
   }

   if (theJob->IsPaused || theJob->HostingPrintQueue->IsPaused)
   {
      HandlePausedJob(theJob);
      //HandlePausedJob is defined in the complete example.
   }

   if (theJob->IsPrinting)
   {
      Console::WriteLine("The job is printing now.");
   }
   if (theJob->IsSpooling)
   {
      Console::WriteLine("The job is spooling now.");
   }
   if (theJob->IsUserInterventionRequired)
   {
      Console::WriteLine("The printer needs human intervention.");
   }
};
// Check for possible trouble states of a print job using its properties
internal static void SpotTroubleUsingProperties(PrintSystemJobInfo theJob)
{
    if (theJob.IsBlocked)
    {
        Console.WriteLine("The job is blocked.");
    }
    if (theJob.IsCompleted || theJob.IsPrinted)
    {
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
    }
    if (theJob.IsDeleted || theJob.IsDeleting)
    {
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
    }
    if (theJob.IsInError)
    {
        Console.WriteLine("The job has errored.");
    }
    if (theJob.IsOffline)
    {
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.");
    }
    if (theJob.IsPaperOut)
    {
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
    }

    if (theJob.IsPaused || theJob.HostingPrintQueue.IsPaused)
    {
        HandlePausedJob(theJob);
        //HandlePausedJob is defined in the complete example.
    }

    if (theJob.IsPrinting)
    {
        Console.WriteLine("The job is printing now.");
    }
    if (theJob.IsSpooling)
    {
        Console.WriteLine("The job is spooling now.");
    }
    if (theJob.IsUserInterventionRequired)
    {
        Console.WriteLine("The printer needs human intervention.");
    }
}//end SpotTroubleUsingProperties
' Check for possible trouble states of a print job using its properties
Friend Shared Sub SpotTroubleUsingProperties(ByVal theJob As PrintSystemJobInfo)
    If theJob.IsBlocked Then
        Console.WriteLine("The job is blocked.")
    End If
    If theJob.IsCompleted OrElse theJob.IsPrinted Then
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.")
    End If
    If theJob.IsDeleted OrElse theJob.IsDeleting Then
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.")
    End If
    If theJob.IsInError Then
        Console.WriteLine("The job has errored.")
    End If
    If theJob.IsOffline Then
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.")
    End If
    If theJob.IsPaperOut Then
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.")
    End If

    If theJob.IsPaused OrElse theJob.HostingPrintQueue.IsPaused Then
        HandlePausedJob(theJob)
        'HandlePausedJob is defined in the complete example.
    End If

    If theJob.IsPrinting Then
        Console.WriteLine("The job is printing now.")
    End If
    If theJob.IsSpooling Then
        Console.WriteLine("The job is spooling now.")
    End If
    If theJob.IsUserInterventionRequired Then
        Console.WriteLine("The printer needs human intervention.")
    End If

End Sub

La méthode HandlePausedJob permet à l’utilisateur de l’application de relancer à distance des travaux suspendus. Les files d’attente à l’impression étant généralement interrompues pour une bonne raison, la méthode commence par demander à l’utilisateur s’il souhaite la relancer ou non. Si la réponse est « Y », la PrintQueue.Resume méthode est appelée.

Ensuite, l’utilisateur doit décider si le travail lui-même doit reprendre, au cas où il aurait été suspendu indépendamment de la file d’attente à l’impression. (Comparer PrintQueue.IsPaused et PrintSystemJobInfo.IsPaused.) Si la réponse est « Y », elle PrintSystemJobInfo.Resume est appelée ; sinon Cancel , elle est appelée.

static void HandlePausedJob (PrintSystemJobInfo^ theJob) 
{
   // If there's no good reason for the queue to be paused, resume it and 
   // give user choice to resume or cancel the job.
   Console::WriteLine("The user or someone with administrative rights to the queue" + "\nhas paused the job or queue." + "\nResume the queue? (Has no effect if queue is not paused.)" + "\nEnter \"Y\" to resume, otherwise press return: ");
   String^ resume = Console::ReadLine();
   if (resume == "Y")
   {
      theJob->HostingPrintQueue->Resume();

      // It is possible the job is also paused. Find out how the user wants to handle that.
      Console::WriteLine("Does user want to resume print job or cancel it?" + "\nEnter \"Y\" to resume (any other key cancels the print job): ");
      String^ userDecision = Console::ReadLine();
      if (userDecision == "Y")
      {
         theJob->Resume();
      } else
      {
         theJob->Cancel();
      }
   }
};
internal static void HandlePausedJob(PrintSystemJobInfo theJob)
{
    // If there's no good reason for the queue to be paused, resume it and
    // give user choice to resume or cancel the job.
    Console.WriteLine("The user or someone with administrative rights to the queue" +
         "\nhas paused the job or queue." +
         "\nResume the queue? (Has no effect if queue is not paused.)" +
         "\nEnter \"Y\" to resume, otherwise press return: ");
    String resume = Console.ReadLine();
    if (resume == "Y")
    {
        theJob.HostingPrintQueue.Resume();

        // It is possible the job is also paused. Find out how the user wants to handle that.
        Console.WriteLine("Does user want to resume print job or cancel it?" +
            "\nEnter \"Y\" to resume (any other key cancels the print job): ");
        String userDecision = Console.ReadLine();
        if (userDecision == "Y")
        {
            theJob.Resume();
        }
        else
        {
            theJob.Cancel();
        }
    }//end if the queue should be resumed
}//end HandlePausedJob
Friend Shared Sub HandlePausedJob(ByVal theJob As PrintSystemJobInfo)
    ' If there's no good reason for the queue to be paused, resume it and 
    ' give user choice to resume or cancel the job.
    Console.WriteLine("The user or someone with administrative rights to the queue" & vbLf & "has paused the job or queue." & vbLf & "Resume the queue? (Has no effect if queue is not paused.)" & vbLf & "Enter ""Y"" to resume, otherwise press return: ")
    Dim [resume] As String = Console.ReadLine()
    If [resume] = "Y" Then
        theJob.HostingPrintQueue.Resume()

        ' It is possible the job is also paused. Find out how the user wants to handle that.
        Console.WriteLine("Does user want to resume print job or cancel it?" & vbLf & "Enter ""Y"" to resume (any other key cancels the print job): ")
        Dim userDecision As String = Console.ReadLine()
        If userDecision = "Y" Then
            theJob.Resume()
        Else
            theJob.Cancel()
        End If
    End If 'end if the queue should be resumed

End Sub

Voir aussi