PngBitmapEncoder.Interlace Property

 

Gets or sets a value that indicates whether the Portable Network Graphics (PNG) bitmap should interlace.

Namespace:   System.Windows.Media.Imaging
Assembly:  PresentationCore (in PresentationCore.dll)

public PngInterlaceOption Interlace { get; set; }

Property Value

Type: System.Windows.Media.Imaging.PngInterlaceOption

One of the Interlace values. The default is PngInterlaceOption.Default.

Interlacing refers to the process of displaying a PNG frame in two fields. One field contains the even lines of the frame, and the other field contains the odd lines of the frame. When the PNG is viewed, the lines in one field are displayed first, and then the lines in the second field are displayed.

The following example demonstrates how to use the Interlace property.

FileStream stream = new FileStream("new.png", FileMode.Create);
PngBitmapEncoder encoder = new PngBitmapEncoder();
TextBlock myTextBlock = new TextBlock();
myTextBlock.Text = "Codec Author is: " + encoder.CodecInfo.Author.ToString();
encoder.Interlace = PngInterlaceOption.On;
encoder.Frames.Add(BitmapFrame.Create(image));
encoder.Save(stream);

.NET Framework
Available since 3.0
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