←Select platform

AnnCodecs Class

Summary

Provides support for loading and saving objects to annotation files.

Syntax

C++

public class AnnCodecs

Public Class AnnCodecs

public ref class AnnCodecs

Remarks

This class supports loading and saving annotation objects from and to disk files and to memory stream as well as getting information on information objects saved in a disk file or a memory stream.

This class also supports saving and loading multi-page annotation files or streams.

Example

This example saves the objects from an existing container to a disk file and loads them back.

Imports Leadtools.Windows.Controls 
Imports Leadtools.Windows.Annotations 
 
Public Sub AnnCodecs_AnnCodecs(ByVal fileName As String) 
   ' create a new annotation container 
   Dim container As AnnContainer = New AnnContainer() 
   ' add a few objects into the container 
 
   Dim rectObj As AnnRectangleObject = New AnnRectangleObject() 
   rectObj.Rect = New Rect(100, 100, 100, 100) 
   rectObj.Stroke = Colors.Blue 
   rectObj.StrokeThickness = 1.0 
   rectObj.Fill = Nothing 
   container.Children.Add(rectObj) 
 
   Dim lineObj As AnnLineObject = New AnnLineObject() 
   lineObj.Start = New Point(100, 100) 
   lineObj.End = New Point(200, 200) 
   lineObj.Stroke = Colors.Red 
   lineObj.StrokeThickness = 1.0 
 
   container.Children.Add(lineObj) 
 
   ' create a new AnnCodecs class 
   Dim codecs As AnnCodecs = New AnnCodecs() 
 
   ' save this container into a file 
   ' save the objects in this container 
   codecs.Save(fileName, container, AnnCodecsFormat.NativeXml, 1, AnnCodecsSavePageMode.Overwrite) 
 
   ' get information about the file 
   Dim information As AnnCodecsInformation = New AnnCodecsInformation() 
   codecs.GetInformation(fileName, information) 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)) 
 
   ' save the objects again (as a second page) 
   codecs.Save(fileName, container, AnnCodecsFormat.NativeXml, 2, AnnCodecsSavePageMode.Insert) 
 
   ' get information about the file 
   information = New AnnCodecsInformation() 
   codecs.GetInformation(fileName, information) 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)) 
 
   ' delete the first page 
   codecs.DeletePage(fileName, 1) 
 
   ' get information about the file 
   information = New AnnCodecsInformation() 
   codecs.GetInformation(fileName, information) 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)) 
End Sub

using Leadtools.Windows.Controls; 
using Leadtools.Windows.Annotations; 
using Leadtools.Demos; 
using Leadtools.Help; 
 
public void AnnCodecs_AnnCodecs(string fileName) 
{ 
   // create a new annotation container 
   AnnContainer container = new AnnContainer(); 
   // add a few objects into the container 
 
   AnnRectangleObject rectObj = new AnnRectangleObject(); 
 
   rectObj.Rect = new Rect(100,100,100,100); 
   rectObj.Stroke = Colors.Blue; 
   rectObj.Fill = Colors.Transparent; 
   rectObj.StrokeThickness = 1.0; 
   container.Children.Add(rectObj); 
 
   AnnLineObject lineObj = new AnnLineObject(); 
   lineObj.Start = new Point(100,100); 
   lineObj.End = new Point(200, 200); 
   lineObj.Stroke = Colors.Red; 
   lineObj.StrokeThickness = 1.0; 
 
   container.Children.Add(lineObj); 
 
   // create a new AnnCodecs class 
   AnnCodecs codecs = new AnnCodecs(); 
 
   // save this container into a file 
   // save the objects in this container 
   codecs.Save(fileName, container, AnnCodecsFormat.NativeXml, 1, AnnCodecsSavePageMode.Overwrite); 
 
   // get information about the file 
   AnnCodecsInformation information = new AnnCodecsInformation(); 
   codecs.GetInformation(fileName, information); 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)); 
 
   // save the objects again (as a second page) 
   codecs.Save(fileName, container, AnnCodecsFormat.NativeXml, 2, AnnCodecsSavePageMode.Insert); 
 
   // get information about the file 
   information = new AnnCodecsInformation(); 
   codecs.GetInformation(fileName, information); 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)); 
 
   // delete the first page 
   codecs.DeletePage(fileName, 1); 
 
   // get information about the file 
   information = new AnnCodecsInformation(); 
   codecs.GetInformation(fileName, information); 
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages)); 
}