50RMB悬赏答案！

[AK_SKY]

PrintDialog printDiag = new PrintDialog();
printDiag.UserPageRangeEnabled = true;
PrintCapabilities capabilities = printDiag.PrintQueue.GetPrintCapabilities(printDiag.PrintTicket)

double scale = Math.Min(capabilities.PageImageableArea.ExtentWidth / canvasDrawing.ActualWidth
, capabilities.PageImageableArea.ExtentHeight / canvasDrawing.ActualHeight);

Canvas.LayoutTransform = new ScaleTransform(scale, scale);

Size sz = new Size(capabilities.PageImageableArea.ExtentWidth
, capabilities.PageImageableArea.ExtentHeight);

Canvas.Measure(sz);
Canvas.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth,capabilities.PageImageableArea.OriginHeight), sz));
canvas变形后怎么还原！！！！

[daihua_1113]

爱莫能助

[AK_SKY]

事先说一下 Canvas.LayoutTransform =null;不行！

[xingjunli]

贴全XAML和CS代码

[AK_SKY]

private void btnPrint_Click(object sender, RoutedEventArgs e)
{
PrintDialog printDiag = new PrintDialog();
printDiag.UserPageRangeEnabled = true;
PrintCapabilities capabilities = printDiag.PrintQueue.GetPrintCapabilities(printDiag.PrintTicket);

Size szOrg = new Size(canvasDrawing.ActualWidth, canvasDrawing.ActualHeight);

Rect rect = new Rect(szOrg);

//if (printDiag.ShowDialog() == true)
// {

double scale = Math.Min(capabilities.PageImageableArea.ExtentWidth / canvasDrawing.ActualWidth
, capabilities.PageImageableArea.ExtentHeight / canvasDrawing.ActualHeight);

// Transform savedTransform = canvasDrawing.LayoutTransform;

canvasDrawing.LayoutTransform = new ScaleTransform(scale, scale);

Size sz = new Size(capabilities.PageImageableArea.ExtentWidth
, capabilities.PageImageableArea.ExtentHeight);

canvasDrawing.Measure(sz);
canvasDrawing.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz));


//printDiag.PrintVisual(canvasDrawing, "Play book");
//canvasDrawing.LayoutTransform = savedTransform;
// canvasDrawing.Measure(szOrg);
//canvasDrawing.Arrange(rect);
//}


}

[AK_SKY]

项目很大 无法贴全！

[AK_SKY]

有兴趣的可以加我QQ 275843818

[xingjunli]

试试这个代码，Sorry!公司无法上Q

ScaleTransform scaleTrans = (ScaleTransform)canvasDrawing.LayoutTransform;
            scaleTrans.ScaleX = 1.0;
            scaleTrans.ScaleY = 1.0;

[AK_SKY]

不行 主要是 canvasDrawing.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz)); 这个怎么还原!

[bidisty]

如果方法行不通就换个方法

[javalzn]

来找我吧，给你满意答案qq 474165841

[flyingsky00]

可以Canvas备份一个，返回时，重新显示备份的Canvas

[A-雷子]

不懂！