| 套件 | mx.graphics |
| 類別 | public dynamic class ImageSnapshot |
| 繼承 | ImageSnapshot  Object |
| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
flash.display.IBitmapDrawable,
including Flex UIComponents.
An instance of this class can be sent as a RemoteObject
to Adobe's LiveCycle Data Services to generate
a PDF file of a client-side image.
If you need to specify additional properties of the image
beyond its contentType, width,
and height properties, you should set name/value pairs
on the properties object.
In earlier versions of Flex, you set these additional properties on the ImageSnapshot instance itself. This class is still dynamic in order to allow that, but in a future version of Flex it might no longer be dynamic.
隱藏繼承公用屬性
顯示繼承公用屬性| 屬性 | 定義自 | ||
|---|---|---|---|
 | constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | Object | |
| contentType : String
The MIME content type for the image encoding format
that was used to capture this snapshot. | ImageSnapshot | ||
| data : ByteArray
The encoded data representing the image snapshot. | ImageSnapshot | ||
| defaultEncoder : Class [靜態]
The default mx.graphics.codec.IImageEncoder implementation
used to capture images. | ImageSnapshot | ||
| height : int
The image height in pixels. | ImageSnapshot | ||
| properties : Object
An Object containing name/value pairs
specifying additional properties of the image. | ImageSnapshot | ||
| width : int
The image width in pixels. | ImageSnapshot | ||
| 方法 | 定義自 | ||
|---|---|---|---|
Constructor. | ImageSnapshot | ||
captureBitmapData(source:IBitmapDrawable, matrix:Matrix = null, colorTransform:flash.geom:ColorTransform = null, blendMode:String = null, clipRect:Rectangle = null, smoothing:Boolean = false):BitmapData [靜態]
A utility method to grab a raw snapshot of a UI component as BitmapData. | ImageSnapshot | ||
captureImage(source:IBitmapDrawable, dpi:Number = 0, encoder:IImageEncoder = null, scaleLimited:Boolean = true):ImageSnapshot [靜態]
A utility method to grab a snapshot of a component, scaled to a specific
resolution (in dpi) and encoded into a specific image format. | ImageSnapshot | ||
[靜態]
A utility method to convert an ImageSnapshot into a Base-64 encoded
String for transmission in text based serialization formats such as XML. | ImageSnapshot | ||
|
指出物件是否有已定義的指定屬性。 | Object | |
|
指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。 | Object | |
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
|
為迴圈作業設定動態屬性的可用性。 | Object | |
|
傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
|
會傳回指定之物件的字串形式。 | Object | |
|
會傳回指定之物件的基本值。 | Object | |
| 常數 | 定義自 | ||
|---|---|---|---|
| MAX_BITMAP_DIMENSION : int = 2880 [靜態]
The maximum width and height of a Bitmap. | ImageSnapshot | ||
contentType | 屬性 |
contentType:String| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
The MIME content type for the image encoding format that was used to capture this snapshot. For PNG format images, the MIME type is "image/png". For JPG or JPEG images, the MIME type is "image/jpeg"
實作
public function get contentType():String public function set contentType(value:String):voiddata | 屬性 |
defaultEncoder | 屬性 |
public static var defaultEncoder:Class| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
The default mx.graphics.codec.IImageEncoder implementation
used to capture images. The two implementations are PNGEncoder and
JPEGEncoder. The default encoder uses the PNG format.
height | 屬性 |
properties | 屬性 |
properties:Object| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
An Object containing name/value pairs specifying additional properties of the image.
You generally supply such information only when sending an ImageSnapshot instance to Adobe's LiveCycle Data Services in order to generate a PDF file. You can either set the entire object or set individual name/value pairs on the pre-existing empty Object.
預設值為 {}。
實作
public function get properties():Object public function set properties(value:Object):voidwidth | 屬性 |
ImageSnapshot | () | 建構函式 |
public function ImageSnapshot(width:int = 0, height:int = 0, data:ByteArray = null, contentType:String = null)| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
Constructor.
參數width:int (default = 0) | |
height:int (default = 0) | |
data:ByteArray (default = null) | |
contentType:String (default = null) |
captureBitmapData | () | 方法 |
public static function captureBitmapData(source:IBitmapDrawable, matrix:Matrix = null, colorTransform:flash.geom:ColorTransform = null, blendMode:String = null, clipRect:Rectangle = null, smoothing:Boolean = false):BitmapData| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
A utility method to grab a raw snapshot of a UI component as BitmapData.
參數
source:IBitmapDrawable — An object that implements the
flash.display.IBitmapDrawable interface.
| |
matrix:Matrix (default = null) | |
colorTransform:flash.geom:ColorTransform (default = null) | |
blendMode:String (default = null) | |
clipRect:Rectangle (default = null) | |
smoothing:Boolean (default = false) |
BitmapData — A BitmapData object representing the captured snapshot or null if
the source has no visible bounds.
|
captureImage | () | 方法 |
public static function captureImage(source:IBitmapDrawable, dpi:Number = 0, encoder:IImageEncoder = null, scaleLimited:Boolean = true):ImageSnapshot| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
A utility method to grab a snapshot of a component, scaled to a specific resolution (in dpi) and encoded into a specific image format.
參數
source:IBitmapDrawable — An object that implements the
flash.display.IBitmapDrawable interface.
| |
dpi:Number (default = 0) | |
encoder:IImageEncoder (default = null) | |
scaleLimited:Boolean (default = true) |
ImageSnapshot — An ImageSnapshot holding an encoded captured snapshot
and associated image metadata.
|
encodeImageAsBase64 | () | 方法 |
public static function encodeImageAsBase64(snapshot:ImageSnapshot):String| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
A utility method to convert an ImageSnapshot into a Base-64 encoded String for transmission in text based serialization formats such as XML.
參數
snapshot:ImageSnapshot — An image captured as an
mx.graphics.ImageSnapshot.
|
String — A string representing the base64 encoded snapshot.
|
相關 API 元素
MAX_BITMAP_DIMENSION | 常數 |
public static const MAX_BITMAP_DIMENSION:int = 2880| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 3 |
| 執行階段版本: | Flash Player 9, AIR 1.1 |
The maximum width and height of a Bitmap.
Tue Jun 12 2018, 03:47 PM Z