.NET 4.5 WPF打印问题，纸张尺寸总是NorthAmericaLetter [英] .Net 4.5 wpf printing issue, paper size is always NorthAmericaLetter

问题描述

我有一个问题，与印在上头。在.net 4.5，它总是将打印纸张尺寸NorthAmericaLetter。在.NET Framework 3.5的它打印在正确的纸张尺寸，我在code定义。我试了一下在同一个解决方案，用同样的code和只是改变了目标框架。

我的问题是，我失去了一些东西，在打印标签的配置或我怎么能设置纸张尺寸在.net 4.5是否正确？

  VAR视觉=新DrawingVisual（）;

使用（VAR上下文= visual.RenderOpen（））
{
    context.DrawRectangle（Brushes.CadetBlue，新朋（Brushes.Black，2）
        新的矩形（新点（0，0），新的大小（793，1122）））;
    context.DrawRectangle（Brushes.Brown，新朋（Brushes.Black，2）
        新的矩形（新点（20，20），新尺寸（40，40）））;
    context.DrawRectangle（Brushes.Brown，新朋（Brushes.Black，2）
        新的矩形（新点（20，257），新的大小（40，40）））;
}


VAR队列=新LocalPrintServer（）DefaultPrintQueue。

queue.UserPrintTicket.PageMediaSize =队列
    .GetPrintCapabilities（）
    .PageMediaSizeCapability
    。单（X =＆GT; x.PageMediaSizeName == PageMediaSizeName.ISOA4）;

queue.UserPrintTicket.PageOrientation = PageOrientation.Portrait;

VAR作家= PrintQueue.CreateXpsDocumentWriter（队列）;
writer.Write（视觉）;
 

解决方案

  PageMediaSize pageMediaSize =新PageMediaSize（PageMediaSizeName.ISOA4）;
        如果（printCapabilities.PageMediaSizeCapability.Contains（pageMediaSize））
        {

            打印标签deltaPrintTicket =新打印标签{PageMediaSize = pageMediaSize};

            VAR的结果=
                queue.MergeAndValidatePrintTicket（queue.UserPrintTicket，
                    deltaPrintTicket）;

            如果（result.ValidatedPrintTicket.PageMediaSize == pageMediaSize）
            {
                queue.UserPrintTicket = result.ValidatedPrintTicket;
                queue.Commit（）;
            }
        }
 

您将不得不进行合并和验证的打印标签：

I have an issue with printing in WPF. In .Net 4.5 it always prints with paper size NorthAmericaLetter. In .Net Framework 3.5 it prints on the correct paper size, which I defined in Code. I tried it in the same Solution, with the same Code and just changed the Target Framework.

My question is, am I missing something in the PrintTicket configuration or how can I set the paper size in .Net 4.5 correctly?

var visual = new DrawingVisual();

using (var context = visual.RenderOpen())
{
    context.DrawRectangle(Brushes.CadetBlue, new Pen(Brushes.Black, 2),
        new Rect(new Point(0, 0), new Size(793, 1122)));
    context.DrawRectangle(Brushes.Brown, new Pen(Brushes.Black, 2),
        new Rect(new Point(20, 20), new Size(40, 40)));
    context.DrawRectangle(Brushes.Brown, new Pen(Brushes.Black, 2),
        new Rect(new Point(20, 257), new Size(40, 40)));
}


var queue = new LocalPrintServer().DefaultPrintQueue;

queue.UserPrintTicket.PageMediaSize = queue
    .GetPrintCapabilities()
    .PageMediaSizeCapability
    .Single(x => x.PageMediaSizeName == PageMediaSizeName.ISOA4);

queue.UserPrintTicket.PageOrientation = PageOrientation.Portrait;

var writer = PrintQueue.CreateXpsDocumentWriter(queue);
writer.Write(visual);

解决方案

        PageMediaSize pageMediaSize = new PageMediaSize(PageMediaSizeName.ISOA4);
        if (printCapabilities.PageMediaSizeCapability.Contains(pageMediaSize))
        {

            PrintTicket deltaPrintTicket = new PrintTicket {PageMediaSize = pageMediaSize };

            var result =
                queue.MergeAndValidatePrintTicket(queue.UserPrintTicket,
                    deltaPrintTicket);

            if (result.ValidatedPrintTicket.PageMediaSize == pageMediaSize)
            {
                queue.UserPrintTicket = result.ValidatedPrintTicket;
                queue.Commit();
            }
        }

You'll have to merge and validate the printticket:

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