JpegBitmapEncoder Class

Reference

Definition

Namespace:: System.Windows.Media.Imaging

Assembly:: PresentationCore.dll

Important

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Defines an encoder that is used to encode Joint Photographics Experts Group (JPEG) format images.

public ref class JpegBitmapEncoder sealed : System::Windows::Media::Imaging::BitmapEncoder

public sealed class JpegBitmapEncoder : System.Windows.Media.Imaging.BitmapEncoder

type JpegBitmapEncoder = class
    inherit BitmapEncoder

Public NotInheritable Class JpegBitmapEncoder
Inherits BitmapEncoder

Inheritance: Object

DispatcherObject

BitmapEncoder
JpegBitmapEncoder

Remarks

Joint Photographics Experts Group (JPEG) format bitmaps support frame level thumbnails and frame level metadata. They do not support preview, global thumbnails, global metadata, or multiple frames.

Encoding does not work in partial trust. See WPF Partial Trust Security for information on partial trust.

Constructors

JpegBitmapEncoder()

Initializes a new instance of the JpegBitmapEncoder class.

Properties

CodecInfo	Gets information that describes this codec. (Inherited from BitmapEncoder)
ColorContexts	Gets or sets a value that represents the color profile that is associated with this encoder. (Inherited from BitmapEncoder)
Dispatcher	Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject)
FlipHorizontal	Gets or sets a value that indicates whether a Joint Photographics Experts Group (JPEG) image should be flipped horizontally during encoding.
FlipVertical	Gets or sets a value that indicates whether a Joint Photographics Experts Group (JPEG) image should be flipped vertically during encoding.
Frames	Gets or sets the individual frames within an image. (Inherited from BitmapEncoder)
Metadata	Gets or sets the metadata that will be associated with this bitmap during encoding. (Inherited from BitmapEncoder)
Palette	Gets or sets a value that represents the BitmapPalette of an encoded bitmap. (Inherited from BitmapEncoder)
Preview	Gets or sets a BitmapSource that represents the global preview of a bitmap, if there is one. (Inherited from BitmapEncoder)
QualityLevel	Gets or sets a value that indicates the quality level of the resulting Joint Photographics Experts Group (JPEG) image.
Rotation	Gets or sets a value that represents the degree to which a Joint Photographics Experts Group (JPEG) image is rotated.
Thumbnail	Gets or sets a BitmapSource that represents the global embedded thumbnail. (Inherited from BitmapEncoder)

Methods

CheckAccess()	Determines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
Save(Stream)	Encodes a bitmap image to a specified Stream. (Inherited from BitmapEncoder)
ToString()	Returns a string that represents the current object. (Inherited from Object)
VerifyAccess()	Enforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject)

Applies to

通过