PngBitmapEncoder.Interlace Property

Definition

Namespace:

System.Windows.Media.Imaging

Assembly:

PresentationCore.dll

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

public:
 property System::Windows::Media::Imaging::PngInterlaceOption Interlace { System::Windows::Media::Imaging::PngInterlaceOption get(); void set(System::Windows::Media::Imaging::PngInterlaceOption value); };

public System.Windows.Media.Imaging.PngInterlaceOption Interlace { get; set; }

member this.Interlace : System.Windows.Media.Imaging.PngInterlaceOption with get, set

Public Property Interlace As PngInterlaceOption

Property Value

PngInterlaceOption

One of the Interlace values. The default is Default.

Examples

The following example demonstrates how to use the Interlace property.

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

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);

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

Remarks

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.