WPF打印问题

beipiao1008 2008-10-27 02:40:54

在Canvas放有图片、文字等内容，如何将整个Canvaw打印/打印预览？

请高手指点~~

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beipiao1008 2008-10-31

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THANKS~~

longjun1627 2008-10-31

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 private void printBtn_Click(object sender, RoutedEventArgs e)

        { 

            PrintDialog pDialog = new PrintDialog();



            if ((bool)pDialog.ShowDialog().GetValueOrDefault())

            {

                DrawingVisual vis = new DrawingVisual();

                DrawingContext dc = vis.RenderOpen();

                FrameworkElement fe = ImageCanvas as FrameworkElement;//ImageCanvas为Canvas控件

                RenderTargetBitmap bitmapImage = new RenderTargetBitmap((int)fe.ActualWidth, (int)fe.ActualHeight, 96, 96, PixelFormats.Pbgra32);

                bitmapImage.Render(ImageCanvas);

                dc.DrawImage(bitmapImage, new Rect(new Point(0, 0), new Point((int)fe.ActualWidth, (int)fe.ActualHeight)));

                

                dc.Close();



                pDialog.PrintVisual(vis, "设计图");

            }

        }