Reads all the metadata markers (COM and APPn) from a stream.
public IList<RasterMarkerMetadata> ReadMarkers(
Stream stream
)
Public Overloads Function ReadMarkers( _
ByVal stream As Stream _
) As IList(Of RasterMarkerMetadata)
- (nullable NSArray<LTRasterMarkerMetadata *> *)readMarkersFromStream:(LTLeadStream *)stream error:(NSError **)error
public List<RasterMarkerMetadata> readMarkers(ILeadStream stream)
public:
IList<RasterMarkerMetadata^>^ ReadMarkers(
Stream^ stream
)
stream
A Stream containing the input file image data.
A collection of RasterMarkerMetadata objects containing the metadata marker data.
This method reads all the metadata markers from a file, and returns a collection of the markers.
For Exif files, this metadata collection will contain all the Exif and GPS comments, stored in APP1. It will also contain the audio information stored in APP2.
If the file contains no marker, then this method will return an empty collection.
This example will read all the markers from a stream that contains an EXIF file data
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Svg;
using LeadtoolsExamples.Common;
void ReadMarkersFromStreamExample(Stream theStream)
{
RasterCodecs codecs = new RasterCodecs();
IList<RasterMarkerMetadata> markers = codecs.ReadMarkers(theStream);
Console.WriteLine("{0} markers found with the following ID's:", markers.Count);
foreach (RasterMarkerMetadata marker in markers)
Console.WriteLine(marker.Id);
codecs.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Drawing
Imports Leadtools.Svg
Private Sub ReadMarkersFromStreamExample(ByVal theStream As Stream)
Dim codecs As RasterCodecs = New RasterCodecs()
Dim markers As IList(Of RasterMarkerMetadata) = codecs.ReadMarkers(theStream)
Console.WriteLine("{0} markers found with the following ID's:", markers.Count)
For Each marker As RasterMarkerMetadata In markers
Console.WriteLine(marker.Id)
Next marker
codecs.Dispose()
End Sub
c#[Silverlight C# Example]
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Examples;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Windows.Media;
public void ReadMarkersFromStreamExample(Stream inStreamExif)
{
RasterCodecs codecs = new RasterCodecs();
RasterCollection<RasterMarkerMetadata> markers = codecs.ReadMarkers(inStreamExif);
Debug.WriteLine("{0} markers found with the following ID's:", markers.Count);
foreach (RasterMarkerMetadata marker in markers)
Debug.WriteLine(marker.Id);
}
vb[Silverlight VB Example]
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Windows.Media
Public Sub ReadMarkersFromStreamExample(ByVal inStreamExif As Stream)
Dim codecs As RasterCodecs = New RasterCodecs()
Dim markers As RasterCollection(Of RasterMarkerMetadata) = codecs.ReadMarkers(inStreamExif)
Debug.WriteLine("{0} markers found with the following ID's:", markers.Count)
For Each marker As RasterMarkerMetadata In markers
Debug.WriteLine(marker.Id)
Next marker
End Sub
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