BitmapImage.DecodePixelWidth Property


Gets or sets the width, in pixels, that the image is decoded to.

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

public int DecodePixelWidth { get; set; }

Property Value

Type: System.Int32

The width, in pixels, that the image is decoded to. The default value is 0.

IfDecodePixelHeight is also set, the aspect ratio of the bitmap is ignored. If DecodePixelHeight is not set, the aspect ratio remains the same.

The JPEG and Portable Network Graphics (PNG) codecs natively decode the image to the specified size; other codecs decode the image at its original size and scale the image to the desired size.

Identifier field


Metadata properties set to true


The following code example demonstrates how to set the DecodePixelWidth property by using code.

// Define a BitmapImage.
Image myImage = new Image();
BitmapImage bi = new BitmapImage();

// Begin initialization.

// Set properties.
bi.CacheOption = BitmapCacheOption.OnDemand;
bi.CreateOptions = BitmapCreateOptions.DelayCreation;
bi.DecodePixelHeight = 125;
bi.DecodePixelWidth = 125;
bi.Rotation = Rotation.Rotate90;
bi.UriSource = new Uri("smiley.png", UriKind.Relative);

// End initialization.
myImage.Source = bi;
myImage.Stretch = Stretch.None;
myImage.Margin = new Thickness(5);

.NET Framework
Available since 3.0
Windows Phone Silverlight
Available since 8.0
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