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PORenderTargetBitmap is blurry
 

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    <p>Hi i'm creating an image in memory from a Canvas using a PngBitmapEncoder. </p> <pre><code>public void CaptureGraphic() { Canvas canvas = new Canvas(); canvas.SnapsToDevicePixels = true; canvas.Height = IMAGEHEIGHT; canvas.Width = IMAGEWIDTH; Draw(canvas); canvas.Arrange(new Rect(0, 0, IMAGEWIDTH, IMAGEHEIGHT)); member.MemberImage = GetPngFromUIElement(canvas); } public static System.Drawing.Image GetPngFromUIElement(Canvas source) { int width = (int)source.ActualWidth; int height = (int)source.ActualHeight; if (width == 0) width = (int)source.Width; if (height == 0) height = (int)source.Height; RenderTargetBitmap bitmap = new RenderTargetBitmap(width, height, 96d, 96d, PixelFormats.Pbgra32); bitmap.Render(source); PngBitmapEncoder enc = new PngBitmapEncoder(); enc.Interlace = PngInterlaceOption.Off; enc.Frames.Add(BitmapFrame.Create(bitmap)); System.IO.MemoryStream ms = new System.IO.MemoryStream(); enc.Save(ms); System.Drawing.Image image = System.Drawing.Image.FromStream(ms); ms.Flush(); ms.Dispose(); return image; } </code></pre> <p>Then i'm sending the image to the printer using the GDI+ DrawImage() method. However the printed result is blurry.</p> <p>I've tried to match the original canvas size to the printed size to avoid any scaling, equally i've tried to make the original considerably bigger so the scaled image retains the quality however the final printed image is always blurred.</p> <p>Can anyone offer any suggestions/alternatives. I have a considerable GDI+ print routine already setup and moving to wpf documents is not an option just yet.</p> <p>Thanks</p>
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    1. USCadair Idris
    1. USCadair Idris
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      1. VTUpMod
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    1. COI think you could help your self by adding more tags to the question.
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      1. USradbyx
 

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