Save(Stream,AnnContainer,AnnCodecsFormat,Int32,AnnCodecsSavePageMode) Method

Visual Basic
C#
Objective-C
Java
C++

public void Save( 
   Stream stream,
   AnnContainer container,
   AnnCodecsFormat format,
   int page,
   AnnCodecsSavePageMode pageMode
)

'Declaration
 
Public Overloads Sub Save( _
   ByVal stream As Stream, _
   ByVal container As AnnContainer, _
   ByVal format As AnnCodecsFormat, _
   ByVal page As Integer, _
   ByVal pageMode As AnnCodecsSavePageMode _
)

'Usage
 
Dim instance As AnnCodecs
Dim stream As Stream
Dim container As AnnContainer
Dim format As AnnCodecsFormat
Dim page As Integer
Dim pageMode As AnnCodecsSavePageMode
 
instance.Save(stream, container, format, page, pageMode)

public:
void Save( 
   Stream^ stream,
   AnnContainer^ container,
   AnnCodecsFormat format,
   int page,
   AnnCodecsSavePageMode pageMode
)

Parameters

stream: The stream to which to save the objects.
container: An AnnContainer containing the objects to be saved.
format: An AnnCodecsFormat value that specifies the annotation format to use when saving.
page: 1-based index of the page to be saved.
pageMode: A value that indicates how to handle the page when saving to a multi-page stream.

pageMode can be one of the following:

Mode	Description
AnnCodecsSavePageMode.Overwrite	The stream will be overwritten and all previous information will be lost. The value of page must be 1 or -1 (if appending the objects as the last page).
AnnCodecsSavePageMode.Insert	The stream must have valid annotation objects saved to it. The value of page must be between 1 and the total number of pages in the stream. A value of -1 will append the objects as the last page.
AnnCodecsSavePageMode.Replace	The stream must have valid annotation objects saved to it. The value of page must be between 1 and total number of pages in the stream.

This method will not position the stream back to its original position before it returns. It is your responsibility to position the stream back before you can load objects from this stream.

To save multiple containers to a multi-page stream using one method, use Save(Stream, AnnContainer[], AnnCodecsFormat).

For more information, refer to Annotation Files.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Annotations
Imports Leadtools.Codecs
Imports Leadtools.WinForms

Public Sub AnnCodecs_Save()
   ' 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.Bounds = New AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel)
   rectObj.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))
   rectObj.Brush = Nothing
   container.Objects.Add(rectObj)

   Dim lineObj As AnnLineObject = New AnnLineObject()
   lineObj.StartPoint = New AnnPoint(100, 100, AnnUnit.Pixel)
   lineObj.EndPoint = New AnnPoint(200, 200, AnnUnit.Pixel)
   lineObj.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))
   container.Objects.Add(lineObj)

   MessageBox.Show(String.Format("Before Save: Container has {0} objects", container.Objects.Count))

   ' create a memory stream to save the objects into
   Dim ms As MemoryStream = New MemoryStream()
   Try
      ' create a new AnnCodecs class
      Dim codecs As AnnCodecs = New AnnCodecs()

      ' save the objects in this container
      codecs.Save(ms, container, AnnCodecsFormat.Serialize, 1, AnnCodecsSavePageMode.Overwrite)

      ' clear the container
      container.Objects.Clear()
      MessageBox.Show(String.Format("After Save and Clear: Container has {0} objects, Stream size: {1}", container.Objects.Count, ms.Length))

      ' get information about the stream
      ' note, the Save method does not seek the stream back to its original position, so do that now
      ms.Position = 0
      Dim information As AnnCodecsInformation = New AnnCodecsInformation()
      codecs.GetInformation(ms, information)
      MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages))

      ' load the objects back from the stream
      codecs.Load(ms, container, 1)

      MessageBox.Show(String.Format("After Load: Container has {0} objects", container.Objects.Count))
   Finally
      CType(ms, IDisposable).Dispose()
   End Try
End Sub

using Leadtools;
using Leadtools.Annotations;
using Leadtools.Codecs;
using Leadtools.WinForms;

public void AnnCodecs_Save()
{
   // create a new annotation container
   AnnContainer container = new AnnContainer();
   // add a few objects into the container

   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Bounds = new AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel);
   rectObj.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel));
   rectObj.Brush = null;
   container.Objects.Add(rectObj);

   AnnLineObject lineObj = new AnnLineObject();
   lineObj.StartPoint = new AnnPoint(100, 100, AnnUnit.Pixel);
   lineObj.EndPoint = new AnnPoint(200, 200, AnnUnit.Pixel);
   lineObj.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel));
   container.Objects.Add(lineObj);

   MessageBox.Show(string.Format("Before Save: Container has {0} objects", container.Objects.Count));

   // create a memory stream to save the objects into
   using (MemoryStream ms = new MemoryStream())
   {
      // create a new AnnCodecs class
      AnnCodecs codecs = new AnnCodecs();

      // save the objects in this container
      codecs.Save(ms, container, AnnCodecsFormat.Serialize, 1, AnnCodecsSavePageMode.Overwrite);

      // clear the container
      container.Objects.Clear();
      MessageBox.Show(string.Format("After Save and Clear: Container has {0} objects, Stream size: {1}", container.Objects.Count, ms.Length));

      // get information about the stream
      // note, the Save method does not seek the stream back to its original position, so do that now
      ms.Position = 0;
      AnnCodecsInformation information = new AnnCodecsInformation();
      codecs.GetInformation(ms, information);
      MessageBox.Show(string.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages));

      // load the objects back from the stream
      codecs.Load(ms, container, 1);

      MessageBox.Show(String.Format("After Load: Container has {0} objects", container.Objects.Count));
   }
}

Target Platforms

Reference

AnnCodecs Class
AnnCodecs Members
Overload List