Guide pratique pour diagnostiquer le travail d’impression problématique

Article
12/18/2024

Les administrateurs réseau reçoivent souvent des plaintes des utilisateurs concernant les travaux d’impression qui n’impriment pas ou 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

Les principales étapes de création de ce type d’utilitaire sont les suivantes.

Identifiez le travail d’impression dont l’utilisateur se plaint. Les utilisateurs ne peuvent souvent pas le faire précisément. Ils ne connaissent peut-être pas les noms des serveurs d’impression ou imprimantes. Ils peuvent décrire l’emplacement de l’imprimante dans une terminologie différente de celle utilisée pour définir sa propriété Location. En conséquence, il est judicieux de générer une liste des travaux actuellement soumis par l’utilisateur. S’il en existe plusieurs, la communication entre l’utilisateur et l’administrateur système d’impression peut être utilisée pour identifier le travail qui rencontre des problèmes. Les sous-étapes sont les suivantes.
1. Obtenez la liste de tous les serveurs d’impression.
2. Parcourez les serveurs pour interroger leurs files d’attente d’impression.
3. Dans chaque passe de la boucle du serveur, parcourez toutes les files d’attente du serveur pour interroger leurs tâches.
4. Dans chaque passe de la boucle de file d’attente, parcourez ses travaux et rassemblez des informations d’identification sur celles qui ont été soumises par l’utilisateur plaignant.
Lorsque le travail d’impression problématique a été identifié, examinez les propriétés pertinentes pour voir ce qui peut être le problème. Par exemple, le travail est-il dans un état d'erreur ou l'imprimante qui gère la file d'attente est-elle tombée hors ligne avant que le travail ne puisse être imprimé ?

Le code ci-dessous est une série d’exemples de code. Le premier exemple de code contient la boucle qui parcourt les files d’attente d’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 de file d’attente d’impression actuel avec PrintQueue.Refresh. Cela garantit que les propriétés de l’objet représentent avec précision l’état de l’imprimante physique qu’il représente. L’application obtient ensuite l'ensemble des travaux d’impression actuellement dans la file d'attente à l’aide de GetPrintJobInfoCollection.

Ensuite, l’application effectue une boucle dans la collection PrintSystemJobInfo et compare chaque propriété Submitter avec l’alias de l’utilisateur qui se plaint. S’ils correspondent, l’application ajoute des informations d’identification sur le poste à la chaîne de caractères qui sera présenté. (Les variables userName et jobList sont initialisées précédemment 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 des objets PrintServer, PrintQueueet PrintSystemJobInfo.

À ce stade, l’application contient une structure de branchement correspondant aux deux façons de vérifier l’état d’un travail d’impression :

Vous pouvez lire les indicateurs de la propriété JobStatus de type PrintJobStatus.
Vous pouvez lire chaque propriété pertinente telle que IsBlocked et IsInError.

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 propriété JobStatus. Pour plus d’informations sur les deux méthodes, voir ci-dessous. Enfin, l’application utilise une méthode appelée ReportQueueAndJobAvailability pour signaler si le travail peut être imprimé à l’heure actuelle. Cette méthode est décrite dans Découvrir si un travail d’impression peut être imprimé à ce moment 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 vérifier l’état du travail d’impression à l’aide des indicateurs de la propriété JobStatus, vous vérifiez chaque indicateur approprié pour voir s’il est défini. La méthode standard pour voir si un bit est défini dans un ensemble d’indicateurs de bits consiste à effectuer une opération AND logique avec le jeu d’indicateurs comme un opérande et l’indicateur lui-même comme l’autre. Étant donné que l’indicateur lui-même n’a qu’un seul jeu de bits, le résultat de la logique AND est que, au maximum, ce même bit est défini. Pour savoir si c'est le cas ou non, comparez simplement le résultat de l'ET logique avec l'indicateur lui. Pour plus d’informations, consultez PrintJobStatus, l’opérateur & (référence C#)et FlagsAttribute.

Pour chaque attribut dont le bit est défini, le code signale cela à l’écran de la console et suggère parfois un moyen de répondre. (La méthode HandlePausedJob, est appelée si le travail ou la file d’attente est suspendu, est décrite ci-dessous.)

// 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, vous lisez simplement chaque propriété et, si la propriété est true, signalez à l’écran de la console et suggèrez éventuellement un moyen de répondre. (La méthode HandlePausedJob, qui est appelée si le travail ou la file d'attente est suspendu, est décrite ci-dessous.)

// 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 reprendre à distance les travaux suspendus. Étant donné qu’il peut y avoir une bonne raison pour laquelle la file d’attente d’impression a été suspendue, la méthode commence par demander à un utilisateur de décider s’il faut le reprendre. Si la réponse est « Y », la méthode PrintQueue.Resume est appelée.

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

PrintJobStatus
PrintSystemJobInfo
FlagsAttribute
PrintQueue
'opérateur & (référence C#)
Documents dans WPF
Vue d’ensemble de l’impression

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Guide pratique pour diagnostiquer le travail d’impression problématique

Exemple

Voir aussi

Ressources supplémentaires