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

Visual Basic

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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.Left = 100   rectObj.Top = 100   rectObj.Width = 100   rectObj.Height = 100   rectObj.Stroke = Brushes.Blue   rectObj.StrokeThickness = 1.0   rectObj.Fill = Nothing   container.Children.Add(rectObj)   Dim lineObj As AnnLineObject = New AnnLineObject()   lineObj.X1 = 100   lineObj.Y1 = 100   lineObj.X2 = 200   lineObj.Y2 = 200   lineObj.Stroke = Brushes.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.Serialize, 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.Serialize, 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

C#

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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.Left = 100;     rectObj.Top = 100;     rectObj.Width = 100;     rectObj.Height = 100;     rectObj.Stroke = Brushes.Blue;     rectObj.StrokeThickness = 1.0;     rectObj.Fill = null;     container.Children.Add(rectObj);       AnnLineObject lineObj = new AnnLineObject();     lineObj.X1 = 100;     lineObj.Y1 = 100;     lineObj.X2 = 200;     lineObj.Y2 = 200;     lineObj.Stroke = Brushes.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.Serialize, 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.Serialize, 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));  }

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.

System.Object
   Leadtools.Windows.Annotations.AnnCodecs

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003 family

Reference