Save(Stream,AnnContainer) Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public static void Save( 
   Stream stream,
   AnnContainer container
)

'Declaration
 
Public Overloads Shared Sub Save( _
   ByVal stream As Stream, _
   ByVal container As AnnContainer _
)

'Usage
 
Dim stream As Stream
Dim container As AnnContainer
 
AnnCodecs.Save(stream, container)

public static void Save( 
   Stream stream,
   AnnContainer container
)

 function Leadtools.Windows.Annotations.AnnCodecs.Save(Stream,AnnContainer)( 
   stream ,
   container 
)

public:
static void Save( 
   Stream^ stream,
   AnnContainer^ container
)

Parameters

stream: The stream to which to save the objects.
container: An AnnContainer containing the objects to be saved.

This method will save the annotations to the stream using the AnnCodecsFormat.NativeXml format.

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.

For more information, refer to WPF Annotation Files.

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

Copy Code

Public Sub AnnCodecs_LoadSaveContainer()
   ' create a new annotation container
   Dim container As New AnnContainer()
   ' add a few objects into the container

   Dim rectObj As 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)

   Dim lineObj As 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)

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

   ' create a memory stream to save the objects into
   Using ms As New MemoryStream()
      ' save the objects in this container
      AnnCodecs.Save(ms, container)
      ms.Position = 0

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


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

      MessageBox.Show(String.Format("After Load: Container has {0} objects", container.Children.Count))
   End Using
End Sub

public void AnnCodecs_LoadSaveContainer()
{
   // 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);

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

   // create a memory stream to save the objects into
   using(MemoryStream ms = new MemoryStream())
   {
      // save the objects in this container
      AnnCodecs.Save(ms, container);
      ms.Position = 0;

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


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

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

public void AnnCodecs_LoadSaveContainer()
{
   // 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);

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

   // create a memory stream to save the objects into
   using(MemoryStream ms = new MemoryStream())
   {
      // save the objects in this container
      AnnCodecs.Save(ms, container);
      ms.Position = 0;

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


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

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

Public Sub AnnCodecs_LoadSaveContainer()
   ' 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.Fill = Colors.Transparent
   rectObj.StrokeThickness = 1.0
   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)

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

   ' create a memory stream to save the objects into
   Using ms As MemoryStream = New MemoryStream()
      ' save the objects in this container
      AnnCodecs.Save(ms, container)
      ms.Position = 0

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


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

      MessageBox.Show(String.Format("After Load: Container has {0} objects", container.Children.Count))
   End Using
End Sub

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AnnCodecs Class
AnnCodecs Members
Overload List