GeneralTransform class

Applies to Windows and Windows Phone

Provides generalized transformation support for objects. GeneralTransform is a base class that's in the hierarchy of practical transform classes such as TranslateTransform.

Inheritance

Object
  DependencyObject
    GeneralTransform

Syntax


Public Class GeneralTransform
    Inherits DependencyObject

Attributes

[MarshalingBehavior(Agile)]
[Threading(Both)]
[Version(0x06020000)]
[WebHostHidden()]

Members

The GeneralTransform class has these types of members:

Constructors

The GeneralTransform class has these constructors.

ConstructorDescription
GeneralTransform Provides base class initialization behavior for GeneralTransform-derived classes.

 

Methods

The GeneralTransform class has these methods. It also inherits methods from the Object class.

MethodDescription
ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject)
GetAnimationBaseValue Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject)
GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject)
ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject)
SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject)
TransformBounds Transforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it.
TransformBoundsCore Provides the means to override the TransformBounds behavior in a derived transform class.
TransformPoint Uses this transformation object's logic to transform the specified point, and returns the result.
TryTransform Attempts to transform the specified point and returns a value that indicates whether the transformation was successful.
TryTransformCore Provides the means to override the TryTransform behavior in a derived transform class.

 

Properties

The GeneralTransform class has these properties.

PropertyAccess typeDescription

Dispatcher

Read-onlyGets the CoreDispatcher that this object is associated with. (Inherited from DependencyObject)

Inverse

Read-onlyGets the inverse transformation of this GeneralTransform, if possible.

InverseCore

Read-onlyImplements the behavior for return value of Inverse in a derived or custom GeneralTransform.

 

Remarks

Transformation types include rotation (RotateTransform), scale (ScaleTransform), skew/shear (SkewTransform), and translation (TranslateTransform).

MatrixTransform is for transforms that don't use these conventions and instead use Matrix values for transform definition.

CompositeTransform and TransformGroup both support specifying multiple transforms for a combined transformation logic.

There's also an intermediate base class, Transform. Properties sometimes are typed as GeneralTransform or Transform so that you can use any of the practical transforms to provide values.

You can animate properties of a transform. For XAML syntaxes that take a Transform, you need to specify a nonabstract derived type of Transform as an object element. Typically, this is one of: MatrixTransform, RotateTransform, ScaleTransform, SkewTransform, or TranslateTransform. See the syntax sections on the appropriate class.

Use the MatrixTransform class to create custom transformations that are not provided by the other Transform derived classes. A two-dimensional x-y plane uses a 3x3 matrix for transformations.

GeneralTransform derived classes

GeneralTransform is the parent class for Transform. Transform is the parent class for the practical transforms.

Requirements

Minimum supported client

Windows 8 [Windows Store apps only]

Minimum supported server

Windows Server 2012 [Windows Store apps only]

Minimum supported phone

Windows Phone 8.1 [Windows Runtime apps only]

Namespace

Windows.UI.Xaml.Media
Windows::UI::Xaml::Media [C++]

Metadata

Windows.winmd

See also

DependencyObject
Transform
XAML two-dimensional transforms sample

 

 

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