PrintQueue.GetPrintCapabilities Yöntem

Tanım

Ad Alanı:

System.Printing

Bütünleştirilmiş Kod:

System.Printing.dll

Yazıcının veya cihazın renkle yazdırılması veya çift taraflı yazdırma özelliği gibi özelliklerini tanımlayan bir PrintCapabilities nesne alır.

Aşırı Yüklemeler

GetPrintCapabilities()	Yazıcının özelliklerini tanımlayan bir PrintCapabilities nesne alır.
GetPrintCapabilities(PrintTicket)	Yazıcının özelliklerini tanımlayan bir PrintCapabilities nesne alır.

GetPrintCapabilities()

Yazıcının özelliklerini tanımlayan bir PrintCapabilities nesne alır.

public:
 System::Printing::PrintCapabilities ^ GetPrintCapabilities();

public System.Printing.PrintCapabilities GetPrintCapabilities ();

member this.GetPrintCapabilities : unit -> System.Printing.PrintCapabilities

Public Function GetPrintCapabilities () As PrintCapabilities

Döndürülenler

PrintCapabilities

Yazıcının PrintCapabilities yapabileceklerini ve yapamayacağını belirten, çift taraflı başa çıkarma veya otomatik zımbalama gibi bir nesne.

Özel durumlar

PrintQueueException

PrintCapabilities Nesne alınamadı.

Örnekler

Aşağıdaki örnekte, iki yazdırma bileti birleştirirken bu yöntemin nasıl kullanılacağı gösterilmektedir.

/// <summary>
/// Changes the user-default PrintTicket setting of the specified print queue.
/// </summary>
/// <param name="queue">the printer whose user-default PrintTicket setting needs to be changed</param>
static private void ChangePrintTicketSetting(PrintQueue queue)
{
    //
    // Obtain the printer's PrintCapabilities so we can determine whether or not
    // duplexing printing is supported by the printer.
    //
    PrintCapabilities printcap = queue.GetPrintCapabilities();

    //
    // The printer's duplexing capability is returned as a read-only collection of duplexing options
    // that can be supported by the printer. If the collection returned contains the duplexing
    // option we want to set, it means the duplexing option we want to set is supported by the printer,
    // so we can make the user-default PrintTicket setting change.
    //
    if (printcap.DuplexingCapability.Contains(Duplexing.TwoSidedLongEdge))
    {
        //
        // To change the user-default PrintTicket, we can first create a delta PrintTicket with
        // the new duplexing setting.
        //
        PrintTicket deltaTicket = new PrintTicket();
        deltaTicket.Duplexing = Duplexing.TwoSidedLongEdge;

        //
        // Then merge the delta PrintTicket onto the printer's current user-default PrintTicket,
        // and validate the merged PrintTicket to get the new PrintTicket we want to set as the
        // printer's new user-default PrintTicket.
        //
        ValidationResult result = queue.MergeAndValidatePrintTicket(queue.UserPrintTicket, deltaTicket);

        //
        // The duplexing option we want to set could be constrained by other PrintTicket settings
        // or device settings. We can check the validated merged PrintTicket to see whether the
        // the validation process has kept the duplexing option we want to set unchanged.
        //
        if (result.ValidatedPrintTicket.Duplexing == Duplexing.TwoSidedLongEdge)
        {
            //
            // Set the printer's user-default PrintTicket and commit the set operation.
            //
            queue.UserPrintTicket = result.ValidatedPrintTicket;
            queue.Commit();
            Console.WriteLine("PrintTicket new duplexing setting is set on '{0}'.", queue.FullName);
        }
        else
        {
            //
            // The duplexing option we want to set has been changed by the validation process
            // when it was resolving setting constraints.
            //
            Console.WriteLine("PrintTicket new duplexing setting is constrained on '{0}'.", queue.FullName);
        }
    }
    else
    {
        //
        // If the printer doesn't support the duplexing option we want to set, skip it.
        //
        Console.WriteLine("PrintTicket new duplexing setting is not supported on '{0}'.", queue.FullName);
    }
}

''' <summary>
''' Changes the user-default PrintTicket setting of the specified print queue.
''' </summary>
''' <param name="queue">the printer whose user-default PrintTicket setting needs to be changed</param>
Private Shared Sub ChangePrintTicketSetting(ByVal queue As PrintQueue)
    '
    ' Obtain the printer's PrintCapabilities so we can determine whether or not
    ' duplexing printing is supported by the printer.
    '
    Dim printcap As PrintCapabilities = queue.GetPrintCapabilities()

    '
    ' The printer's duplexing capability is returned as a read-only collection of duplexing options
    ' that can be supported by the printer. If the collection returned contains the duplexing
    ' option we want to set, it means the duplexing option we want to set is supported by the printer,
    ' so we can make the user-default PrintTicket setting change.
    '
    If printcap.DuplexingCapability.Contains(Duplexing.TwoSidedLongEdge) Then
        '
        ' To change the user-default PrintTicket, we can first create a delta PrintTicket with
        ' the new duplexing setting.
        '
        Dim deltaTicket As New PrintTicket()
        deltaTicket.Duplexing = Duplexing.TwoSidedLongEdge

        '
        ' Then merge the delta PrintTicket onto the printer's current user-default PrintTicket,
        ' and validate the merged PrintTicket to get the new PrintTicket we want to set as the
        ' printer's new user-default PrintTicket.
        '
        Dim result As ValidationResult = queue.MergeAndValidatePrintTicket(queue.UserPrintTicket, deltaTicket)

        '
        ' The duplexing option we want to set could be constrained by other PrintTicket settings
        ' or device settings. We can check the validated merged PrintTicket to see whether the
        ' the validation process has kept the duplexing option we want to set unchanged.
        '
        If result.ValidatedPrintTicket.Duplexing = Duplexing.TwoSidedLongEdge Then
            '
            ' Set the printer's user-default PrintTicket and commit the set operation.
            '
            queue.UserPrintTicket = result.ValidatedPrintTicket
            queue.Commit()
            Console.WriteLine("PrintTicket new duplexing setting is set on '{0}'.", queue.FullName)
        Else
            '
            ' The duplexing option we want to set has been changed by the validation process
            ' when it was resolving setting constraints.
            '
            Console.WriteLine("PrintTicket new duplexing setting is constrained on '{0}'.", queue.FullName)
        End If
    Else
        '
        ' If the printer doesn't support the duplexing option we want to set, skip it.
        '
        Console.WriteLine("PrintTicket new duplexing setting is not supported on '{0}'.", queue.FullName)
    End If
End Sub

GetPrintCapabilities(PrintTicket)

Yazıcının özelliklerini tanımlayan bir PrintCapabilities nesne alır.

public:
 System::Printing::PrintCapabilities ^ GetPrintCapabilities(System::Printing::PrintTicket ^ printTicket);

public System.Printing.PrintCapabilities GetPrintCapabilities (System.Printing.PrintTicket printTicket);

member this.GetPrintCapabilities : System.Printing.PrintTicket -> System.Printing.PrintCapabilities

Public Function GetPrintCapabilities (printTicket As PrintTicket) As PrintCapabilities

Parametreler

printTicket

PrintTicket

Yazdırma özelliklerinin raporlandığı temeli sağlayan bir yazdırma bileti.

Döndürülenler

PrintCapabilities

Yazıcının PrintCapabilities yapabileceklerini ve yapamayacağını belirten, çift taraflı başa çıkarma veya otomatik zımbalama gibi bir nesne.

Özel durumlar

PrintQueueException

PrintCapabilities Nesne alınamadı.

ArgumentException

printTicket iyi biçimlendirilmemiştir.

Açıklamalar

PrintTicket parametresi, nesnesinin temeli PrintCapabilities olarak kullanılır. Örneğin, yazıcının yalnızca giriş kutusu 1'den A ve B medya türlerini desteklediğini ve yalnızca giriş kutusu 2'den C medya türünü desteklediğini varsayalım. Parametre giriş printTicket kutusu 1'i belirtirse, PrintCapabilities döndürülen nesne üç medya türünü de içerir, ancak C türünü "kısıtlanmış" olarak bildirir. Parametresi giriş printTicket kutusu 2'yi belirtirse, PrintCapabilities döndürülen nesne üç medya türünü de içerir, ancak A ve B türlerini "kısıtlanmış" olarak bildirir. Kısıtlamalar hakkında daha fazla bilgi için bkz. Yazdırma Şeması .

ise printTicketnullUserPrintTicket kullanılır.