BlendFilter Members

The BlendFilter type exposes the following members.

Constructors

  Name Description
Public method BlendFilter()()()() Creates and initializes a new BlendFilter with default values.
Public method BlendFilter(IImageProvider) Creates and initializes a new BlendFilter with an image source.
Public method BlendFilter(IImageProvider, BlendFunction) Creates and initializes a new BlendFilter with an image source and a blend function.
Public method BlendFilter(IImageProvider, BlendFunction, Double) Creates and initializes a new BlendFilter with an image source, a blend function, and a level.
Public method BlendFilter(IImageProvider, IImageProvider, BlendFunction, Double) Creates and initializes a new BlendFilter with an image source, a mask, a blend function, and a level.

Methods

  Name Description
Public method Apply Internal framework method.
Public method Close  
Public method Equals Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method Lock Internal framework method.
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method PrepareAsync Internal framework method.
Public method ToString Returns a string that represents the current object. (Inherited from Object.)

Properties

  Name Description
Public property BlendFunction Blend function to use when blending the two images.
Public property ForegroundSource The foreground image that will be blended onto the background image.
Public property Level The factor of interpolation between the result of the blend operation and the original image.

Range [0.0, 1.0], where 0.0 gives a result identical to the source image and 1.0 means the result of the blend operation is fully visible.

Public property MaskSource An optional mask image that determines per-pixel how much of the result of the blend operation is visible in the final result. If set to null, the alpha channel of the ForegroundSource is used instead.
Public property TargetArea A target area within the background image into which the foreground is image blended. Expressed in the unit coordinate space of the background image, i.e., the top left corner of the background image is at (0, 0), and the bottom right corner is at (1, 1).

TargetOutputOption controls how the foreground is fitted into the target area. By default, the foreground image is stretched to fit the target area.

If value equals Windows::Foundation::Rect::Empty, or either Width or Height is smaller than or equal to zero, the foreground will be stretched over whole background and aspect ratio will not be preserved.

Public property TargetAreaRotation The angle of counter clockwise rotation of TargetArea around its center, in degrees.

If the TargetArea has not been set, or doesn't have a positive width and height, this property will be ignored.

Public property TargetOutputOption Controls how the foreground is fitted into the target area.

If set to Stretch, the foreground image will be resized to fit the target area exactly. If set to PreserveAspectRatio, the foreground image will be blended into the target area centered and with the original aspect ratio intact. If set to PreserveSize, the size portion of the target area will be ignored, and the foregound image will be blended in its original size.


Last updated 19 June 2014

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