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POHow to achieve the same image printing quality as windows default printing?
 

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  1. POHow to achieve the same image printing quality as windows default printing?
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    <p>I am handling the <code>PrintPageEventHandler</code> of the <code>PrintDocument</code> in order to draw an image to the <code>Graphics</code> device using the <code>Image.FromFile</code> Method.</p> <p>I tried to set the dpi values up to 600 and also</p> <pre><code>graphics.InterpolationMode = InterpolationMode.HighQualityBicubic; graphics.SmoothingMode = SmoothingMode.HighQuality; graphics.CompositingQuality = CompositingQuality.HighQuality; graphics.PixelOffsetMode = PixelOffsetMode.HighQuality </code></pre> <p>As suggested <a href="https://stackoverflow.com/questions/1440396/how-can-i-process-an-image-in-net-for-a-full-page-print-with-a-quality-like-win">here</a> but the printed image looks still pixeled and rough compared to printing the same file with e.g. Windows Photo Viewer , which gives a excellent result (tested on Windows 7).</p> <p>I noticed that Paint.net uses WIA Printing Dialog - does this mean the Imagequality is a .NET limitation or am i just doing it wrong?</p> <p>the complete method is here:</p> <pre><code>private void pd_PrintPage(object sender, PrintPageEventArgs ev) { // Draw a picture. ev.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic; ev.Graphics.SmoothingMode = SmoothingMode.HighQuality; ev.Graphics.CompositingQuality = CompositingQuality.HighQuality; ev.Graphics.PixelOffsetMode = PixelOffsetMode.HighQuality; ev.Graphics.DrawImage(Image.FromFile(Global.APPDATA_PATH+ @"tmp\print.png"), ev.Graphics.VisibleClipBounds); // Indicate that this is the last page to print. ev.HasMorePages = false; } </code></pre>
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      1. POHow to achieve the same image printing quality as windows default printing?
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      1. POHow to achieve the same image printing quality as windows default printing?
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    1. CORandom question, are you using Windows 8? I found the quality of printouts decreased significantly on Windows 8 when printing from .net like this compared to earlier versions, just curious if you are using Windows 8 also?
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    2. COAlso, what's your source?
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    3. CO@JMK, OP stated "tested on Windows 7".
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      1. USSteve
 

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