Class PNGChunk

Represents the memory view of a PNG chunk.

Inheritance

System.Object

PNGChunk

Namespace: ExifLibrary

Assembly: ExifLibrary.dll

Syntax

public class PNGChunk

Constructors

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PNGChunk(String, Byte[])

Constructs a PNGChunk represented by the type name and containing the given data.

Declaration

public PNGChunk(string type, byte[] data)

Parameters

Type	Name	Description
System.String	type	The type of chuck.
System.Byte[]	data	Chunk data.

Properties

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CRC

The CRC computed over the chunk type and chunk data

Declaration

public uint CRC { get; }

Property Value

Type	Description
System.UInt32

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Data

Chunk data.

Declaration

public byte[] Data { get; set; }

Property Value

Type	Description
System.Byte[]

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IsCritical

Determines if this is a critical chunk.

Declaration

public bool IsCritical { get; }

Property Value

Type	Description
System.Boolean

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IsPublic

Determines if this is a public chunk.

Declaration

public bool IsPublic { get; }

Property Value

Type	Description
System.Boolean

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IsSafeToCopy

Determines if the chunk may be safely copied regardless of the extent of modifications to the file.

Declaration

public bool IsSafeToCopy { get; }

Property Value

Type	Description
System.Boolean

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Type

The four character ASCII chunk name/type.

Declaration

public string Type { get; set; }

Property Value

Type	Description
System.String

Methods

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ToString()

Returns a string representation of the current chunk.

Declaration

public override string ToString()

Returns

Type	Description
System.String	A System.String that represents the current chunk.

Overrides

System.Object.ToString()

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UpdateCRC()

Updates the CRC value.

Declaration

public void UpdateCRC()