Gets or sets the width, in pixels, that the image is decoded to. This is a dependency property.
(in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Syntax
Visual Basic (Declaration)
Public Property DecodePixelWidth As Integer
Dim instance As BitmapImage
Dim value As Integer
value = instance.DecodePixelWidth
instance.DecodePixelWidth = value
public int DecodePixelWidth { get; set; }
public:
property int DecodePixelWidth {
int get ();
void set (int value);
}
public function get DecodePixelWidth () : int
public function set DecodePixelWidth (value : int)
<object DecodePixelWidth="int" .../>
Property Value
Type:
System..::.Int32The width, in pixels, that the image is decoded to. The default value is 0.
Dependency Property Information
Remarks
If DecodePixelHeight is not set, the aspect ratio of the bitmap remains unaltered. If DecodePixelHeight is set, the aspect ratio is ignored.
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.
Examples
The following code example demonstrates how to set the DecodePixelWidth property by using code.
' Define a BitmapImage.
Dim myImage As New Image()
Dim bi As New BitmapImage()
' Begin initialization.
bi.BeginInit()
' Set properties.
bi.CacheOption = BitmapCacheOption.OnDemand
bi.CreateOptions = BitmapCreateOptions.DelayCreation
bi.DecodePixelHeight = 125
bi.DecodePixelWidth = 125
bi.Rotation = Rotation.Rotate90
MessageBox.Show(bi.IsDownloading.ToString())
bi.UriSource = New Uri("smiley.png", UriKind.Relative)
' End initialization.
bi.EndInit()
myImage.Source = bi
myImage.Stretch = Stretch.None
myImage.Margin = New Thickness(5)
// Define a BitmapImage.
Image myImage = new Image();
BitmapImage bi = new BitmapImage();
// Begin initialization.
bi.BeginInit();
// Set properties.
bi.CacheOption = BitmapCacheOption.OnDemand;
bi.CreateOptions = BitmapCreateOptions.DelayCreation;
bi.DecodePixelHeight = 125;
bi.DecodePixelWidth = 125;
bi.Rotation = Rotation.Rotate90;
MessageBox.Show(bi.IsDownloading.ToString());
bi.UriSource = new Uri("smiley.png", UriKind.Relative);
// End initialization.
bi.EndInit();
myImage.Source = bi;
myImage.Stretch = Stretch.None;
myImage.Margin = new Thickness(5);
Platforms
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information
.NET Framework
Supported in: 3.5, 3.0
See Also