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2004 - Pérennisation
ASP.Net GDI+
[40 mn de lecture - paru le 5/8/2004 1:54:12 PM - Public : Confirmé]

Auteur

degrem_mMichel DEGREMONT
Elève-Ingénieur Supinfo Paris
Promotion SUPINFO 2006

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2. Class Image

We will write a Web application which will enable us to use the properties and methods of the Image class.

2.1. Property of the class Image

You will learn how to open, see, handle and record an image.

Property of the class Images
Image ss Objet
Using System.Drawing;

Property

Description

Flags

Gets gold sets attribute flags for an image

FrameDimensionsList

Turn over a table of GUIDs which represents dimensions of frames in the image.

Height, Width

Turn over the width and the height of the image

HorizontalResolution

Turn over the resolutions horizontal pixel by pixel or for the image

Pallets

Takes or gives the color used for an image.

PhysicalDimension

Turn over the same thing that Height, Width

PixelFormat

Turn over the type of the image, in a number of pixel. PixelFormat can take one of the values of the enumeration of PixelFormat

PropertyIdList

Returns year array of the property IDs stored in year image.

PropertyItems

Returns year array of PropertyItem objects for year image.

RawFormat

Turn over the format of the image

Size

Turn over the size of the image

VerticalResolution

Turn over the resolutions horizontal pixel by pixel or for the image

2.2 Methods of the class Image

Methods of the class Image

Methods

Description

FromFile, FromHbitmap, FromStream

Create an Image object of a source file,

GetBounds

Turn over the limits of a rectangle for an image

GetEncoderParameterList

Turn over the parameters supported by an image.

GetFrameCount

Turn over the total number of copy available in an image. An image included of multiple copy. Each copy is separated by a copy with various properties.

GetPixelFormatSize

Turn over the intensity of the color

GetPropertyItem

Returns the property item.Retourne proprietés

GetThumbnailImage

Turn over a miniature of the image

IsAlphaPixelFormat

Turn over true if the format of the pixel for the Image object contains Alpha information.

IsCanonicalPixelFormat

Returns true yew the pixel format is canonical. This is has reserved format.

IsExtendedPixelFormat

Returns true yew the pixel format is extended. This is has reserved format.

RemovePropertyItem

Removes the property item.

RotateFlip

Opposite or a rotation of the image carries out

Save

Record the image with the specified format

SaveAdd

Takes one parameter of standard EncoderParameters that defines parameters required by the image encoder that is used by the saveadd operation.

SelectActiveFrame

Selects has frame specified by the dimension and index. The first parameter of this method is the frame dimension, which edge Be used to identify year image by its time, resolution, gold number page. The second parameter is the frame index of the activates frame. Calling this method causes all exchanges made to the previous frame to Be discarded.

SetPropertyItem

Sets the been worth of has property item.



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