PngDecoder Class

An ImageDecoder used to read Portable Network Graphics (PNG) images from a Stream.

Inheritance Hierarchy

System.Object
Atalasoft.Imaging.Codec.ImageDecoder
Atalasoft.Imaging.Codec.PngDecoder

Namespace: Atalasoft.Imaging.Codec
Assembly: Atalasoft.dotImage (in Atalasoft.dotImage.dll) Version: 11.4.0.9.0.377 (.NET 4.5.2, x86)

Syntax

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public class PngDecoder : ImageDecoder

Public Class PngDecoder
	Inherits ImageDecoder

The PngDecoder type exposes the following members.

Constructors

	Name	Description
	PngDecoder()	Initializes a new instance of a PngDecoder.
	PngDecoder(Double)	Initializes a new instance of a PcdDecoder with a specified screen gamma.

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Properties

	Name	Description
	ScreenGamma	Gets or sets the screen gamma value that will be used to adjust the colors of a PNG image when read if the image contains gamma.
	SetAlphaFromTransparentColor	Indicates whether or not the PngDcoder should set the alpha channel in the image using the Png file's transparent color.
	SupportedImageType	Obsolete. Returns a Png ImageType enumeration value. (Overrides ImageDecoder.SupportedImageType.)
	TwoBytePerComponentSupport	Gets or sets a value indicating whether 16-bit per component images are read as 16 or 8-bit per component images.

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Methods

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetImageInfo	Retreive information from a Png image stored in a Stream without decoding the image data. (Overrides ImageDecoder.GetImageInfo(Stream).)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsValidFormat	Returns true if the specified Stream contains an Png image. (Overrides ImageDecoder.IsValidFormat(Stream).)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Read	Returns an AtalaImage from a Stream containing a Png encoded image. (Overrides ImageDecoder.Read(Stream, ProgressEventHandler).)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

By default, when opening a Png image using the AtalaImage or Workspace objects, this decoder will automatically be selected from the RegisteredDecoders and does not have to be explicitly set.

Reference

Atalasoft.Imaging.Codec Namespace