XpsDocumentWriter.WritingPrintTicketRequired Événement

Référence

Définition

Espace de noms:: System.Windows.Xps

Assembly:: System.Printing.dll

Important

Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.

Se produit juste avant qu'une méthode Write ou WriteAsync ajoute un PrintTicket à un document ou à une file d'attente à l'impression.

public:
 override event System::Windows::Documents::Serialization::WritingPrintTicketRequiredEventHandler ^ WritingPrintTicketRequired;

public override event System.Windows.Documents.Serialization.WritingPrintTicketRequiredEventHandler WritingPrintTicketRequired;

member this.WritingPrintTicketRequired : System.Windows.Documents.Serialization.WritingPrintTicketRequiredEventHandler

Public Overrides Custom Event WritingPrintTicketRequired As WritingPrintTicketRequiredEventHandler

Type d'événement

WritingPrintTicketRequiredEventHandler

Exemples

L'exemple suivant illustre l'utilisation de l'événement WritingPrintTicketRequired.


// ---------------- PrintMultipleFixedContentDocuments ----------------
/// <summary>
///   Prints the content of a multiple fixed document sequence.</summary>
/// <param name="pq">
///   The print queue to print to.</param>
/// <param name="async">
///   true to print asynchronously; false to print synchronously.</param>
public void PrintMultipleFixedContentDocuments(PrintQueue pq, bool async)
{
    // Create a multiple document FixedDocumentSequence.
    FixedDocumentSequence fds =
        _wpfContent.LoadFixedDocumentSequenceFromDocument();

    // Create a document writer to print to.
    XpsDocumentWriter xdwPrint = GetPrintXpsDocumentWriter(pq);

    // Set the event handler for creating print tickets for
    // each document within the fixed document sequence.
    xdwPrint.WritingPrintTicketRequired +=
        new WritingPrintTicketRequiredEventHandler(
            MultipleFixedContentDocuments_WritingPrintTicketRequired);
    _firstDocumentPrintTicket = 0;

    // Print either asynchronously or synchronously.
    if (async)
        PrintMultipleFixedContentDocumentsAsync(xdwPrint, fds);
    else
        PrintMultipleFixedContentDocuments(xdwPrint, fds);
}// end:PrintMultipleFixedContentDocuments()


' ---------------- PrintMultipleFixedContentDocuments ----------------
''' <summary>
'''   Prints the content of a multiple fixed document sequence.</summary>
''' <param name="pq">
'''   The print queue to print to.</param>
''' <param name="async">
'''   true to print asynchronously; false to print synchronously.</param>
Public Sub PrintMultipleFixedContentDocuments(ByVal pq As PrintQueue, ByVal async As Boolean)
    ' Create a multiple document FixedDocumentSequence.
    Dim fds As FixedDocumentSequence = _wpfContent.LoadFixedDocumentSequenceFromDocument()

    ' Create a document writer to print to.
    Dim xdwPrint As XpsDocumentWriter = GetPrintXpsDocumentWriter(pq)

    ' Set the event handler for creating print tickets for
    ' each document within the fixed document sequence.
    AddHandler xdwPrint.WritingPrintTicketRequired, AddressOf MultipleFixedContentDocuments_WritingPrintTicketRequired
    _firstDocumentPrintTicket = 0

    ' Print either asynchronously or synchronously.
    If async Then
        PrintMultipleFixedContentDocumentsAsync(xdwPrint, fds)
    Else
        PrintMultipleFixedContentDocuments(xdwPrint, fds)
    End If
End Sub

Le gestionnaire d’événements est créé dans l’exemple suivant.


// ----- MultipleFixedContentDocuments_WritingPrintTicketRequired -----
/// <summary>
///   Creates a PrintTicket event handler for
///   printing a FixedDocumentSequence.</summary>
private void MultipleFixedContentDocuments_WritingPrintTicketRequired(
                Object sender, WritingPrintTicketRequiredEventArgs e)
{
    if (e.CurrentPrintTicketLevel ==
            PrintTicketLevel.FixedDocumentSequencePrintTicket)
    {
        // Create a PrintTicket for the FixedDocumentSequence. Any
        // PrintTicket setting specified at the FixedDocumentSequence
        // level will be inherited by lower level (i.e. FixedDocument or
        // FixedPage) unless there exists lower level PrintTicket that
        // sets the setting differently, in which case the lower level
        // PrintTicket setting will override the higher level setting.
        PrintTicket ptFDS = new PrintTicket();
        ptFDS.PageOrientation = PageOrientation.Portrait;
        ptFDS.Duplexing = Duplexing.TwoSidedLongEdge;
        e.CurrentPrintTicket = ptFDS;
    }

    else if (e.CurrentPrintTicketLevel ==
        PrintTicketLevel.FixedDocumentPrintTicket)
    {
        // Use different PrintTickets for different FixedDocuments.
        PrintTicket ptFD = new PrintTicket();

        if (_firstDocumentPrintTicket <= 1)
        {   // Print the first document in black/white and in portrait
            // orientation.  Since the PrintTicket at the
            // FixedDocumentSequence level already specifies portrait
            // orientation, this FixedDocument can just inherit that
            // setting without having to set it again.
            ptFD.PageOrientation = PageOrientation.Portrait;
            ptFD.OutputColor = OutputColor.Monochrome;
            _firstDocumentPrintTicket++;
        }

        else // if (_firstDocumentPrintTicket > 1)
        {   // Print the second document in color and in landscape
            // orientation.  Since the PrintTicket at the
            // FixedDocumentSequence level already specifies portrait
            // orientation, this FixedDocument needs to set its
            // PrintTicket with landscape orientation in order to
            // override the higher level setting.
            ptFD.PageOrientation = PageOrientation.Landscape;
            ptFD.OutputColor = OutputColor.Color;
        }

        e.CurrentPrintTicket = ptFD;
    }// end:else if (CurrentPrintTicketLevel==FixedDocumentPrintTicket)

    // Even though we don't show code for specifying PrintTicket for
    // the FixedPage level, the same inheritance-override logic applies
    // to FixedPage as well.
}// end:MultipleFixedContentDocuments_WritingPrintTicketRequired()


' ----- MultipleFixedContentDocuments_WritingPrintTicketRequired -----
''' <summary>
'''   Creates a PrintTicket event handler for
'''   printing a FixedDocumentSequence.</summary>
Private Sub MultipleFixedContentDocuments_WritingPrintTicketRequired(ByVal sender As Object, ByVal e As WritingPrintTicketRequiredEventArgs)
    If e.CurrentPrintTicketLevel = PrintTicketLevel.FixedDocumentSequencePrintTicket Then
        ' Create a PrintTicket for the FixedDocumentSequence. Any
        ' PrintTicket setting specified at the FixedDocumentSequence
        ' level will be inherited by lower level (i.e. FixedDocument or
        ' FixedPage) unless there exists lower level PrintTicket that
        ' sets the setting differently, in which case the lower level
        ' PrintTicket setting will override the higher level setting.
        Dim ptFDS As New PrintTicket()
        ptFDS.PageOrientation = PageOrientation.Portrait
        ptFDS.Duplexing = Duplexing.TwoSidedLongEdge
        e.CurrentPrintTicket = ptFDS

    ElseIf e.CurrentPrintTicketLevel = PrintTicketLevel.FixedDocumentPrintTicket Then
        ' Use different PrintTickets for different FixedDocuments.
        Dim ptFD As New PrintTicket()

        If _firstDocumentPrintTicket <= 1 Then
            ' orientation.  Since the PrintTicket at the
            ' FixedDocumentSequence level already specifies portrait
            ' orientation, this FixedDocument can just inherit that
            ' setting without having to set it again.
            ptFD.PageOrientation = PageOrientation.Portrait
            ptFD.OutputColor = OutputColor.Monochrome
            _firstDocumentPrintTicket += 1

        Else ' if (_firstDocumentPrintTicket > 1)
            ' orientation.  Since the PrintTicket at the
            ' FixedDocumentSequence level already specifies portrait
            ' orientation, this FixedDocument needs to set its
            ' PrintTicket with landscape orientation in order to
            ' override the higher level setting.
            ptFD.PageOrientation = PageOrientation.Landscape
            ptFD.OutputColor = OutputColor.Color
        End If

        e.CurrentPrintTicket = ptFD
    End If ' end:else if (CurrentPrintTicketLevel==FixedDocumentPrintTicket)

    ' Even though we don't show code for specifying PrintTicket for
    ' the FixedPage level, the same inheritance-override logic applies
    ' to FixedPage as well.

End Sub

Remarques

WritingPrintTicketRequired permet à un gestionnaire d’événements de remplacer un nouveau PrintTicket par celui passé à l’opération d’écriture.

Les quatre Write méthodes et WriteAsync suivantes n’appellent pas l’événement WritingPrintTicketRequired :

Write(Chaîne)
Write(String, XpsDocumentNotificationLevel)
WriteAsync(Chaîne)
WriteAsync(String, XpsDocumentNotificationLevel)

S’applique à

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