GetImageData Method

Summary

Returns the image data at the specified location and size.

Syntax

WinRT C#

public abstract Task<byte[]> GetImageData(  
   Leadtools.Annotations.Core.AnnContainer container, 
   Leadtools.LeadRectD bounds 
)

Public MustOverride Function GetImageData( _ 
   ByVal container As Leadtools.Annotations.Core.AnnContainer, _ 
   ByVal bounds As Leadtools.LeadRectD _ 
) As Task(Of Byte())

public abstract Task<byte[]> GetImageData(  
   Leadtools.Annotations.Core.AnnContainer container, 
   Leadtools.LeadRectD bounds 
)

 function Leadtools.Annotations.Core.AnnDataProvider.GetImageData(  
   container , 
   bounds  
)

Parameters

container
The referenced AnnContainer.

bounds
The location and size in container on where to get the image data. This is in container coordinates.

Return Value

A byte array that contains the image data.

Remarks

Derived classes must implement GetImageData to extract the data of the image being annotated at the specified location and size, and SetImageData to re-apply this same data to the image.

The data is application specific since it will only be stored as is inside the caller annotation object (for example, AnnRedactionObject during realize/restore). The format of the data and how it is obtained or applied is hidden from the annotations framework. A typical scenario would be when copying the pixel data from the image then converting it to a standard format such as PNG and returning it from GetImageData.

The automation framework will call GetImageData only if the value of CanRead is true and SetImageData only when the value of CanWrite is true.

Requirements

Target Platforms