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Effect.EffectMapping Property

Updated: July 2008

When overridden in a derived class, transforms mouse input and coordinate systems through the effect.

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

protected internal virtual GeneralTransform EffectMapping { get; }
You cannot set this property in XAML.

Property Value

Type: System.Windows.Media.GeneralTransform
The transform to apply. The default is the identity transform.

Override the EffectMapping property to assign a transform that differs from the default identity transform.

Input is transformed through the inverse of this transform. The TransformToAncestor and TransformToDescendant methods also have the EffectMapping transform applied.

Incoming points must be in the [0-1] range, and outgoing points must map to the [0-1] range. The Inverse property must return a GeneralTransform that computes the inverse mapping.

The inverse transform maps a point from after the effect is applied to the point that it came from before the effect. The non-inverse transform maps a point from before the effect is applied to after the effect is applied.

Note that the transform does not include information about the physical pixel size being used, and it just operates in the unit range.

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 SP1, 3.0 SP2

Date

History

Reason

July 2008

Added topic for new class.

SP1 feature change.

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