RenderOptions.SetBitmapScalingMode Method

Updated: February 2009

Sets the value of the BitmapScalingMode attached property on a specified dependency object.

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

public static void SetBitmapScalingMode(
	DependencyObject target,
	BitmapScalingMode bitmapScalingMode
)
You cannot use methods in XAML.

Parameters

target
Type: System.Windows.DependencyObject

The UIElement or DrawingGroup descendant on which to set the value of the BitmapScalingMode property.

bitmapScalingMode
Type: System.Windows.Media.BitmapScalingMode

The new value to set the property to.

ExceptionCondition
ArgumentNullException

The specified target is null.

Use the SetBitmapScalingMode method on a UIElement or DrawingGroup descendant that is animating a bitmap.

When animating the scale of any bitmap, the default high-quality image re-sampling algorithm can sometimes consume sufficient system resources to cause frame rate degradation, effectively causing animations to stutter. By setting the BitmapScalingMode property of the RenderOptions object to LowQuality, you can create a smoother animation when scaling a bitmap.

The following example shows how to set the BitmapScalingMode for an image object.

// Set the bitmap scaling mode for the image to render faster.
RenderOptions.SetBitmapScalingMode(MyImage, BitmapScalingMode.LowQuality);

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.

.NET Framework

Supported in: 3.5, 3.0

Date

History

Reason

February 2009

Clarified SetBitmapScalingMode usage.

Content bug fix.

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