public void WriteTags(
Stream stream,
int pageNumber,
IEnumerable<RasterTagMetadata> tags
)
- (BOOL)writeTags:(nullable NSArray<LTRasterTagMetadata *> *)tags
toStream:(LTLeadStream *)stream
pageNumber:(NSInteger)pageNumber
error:(NSError **)error
public void writeTags(ILeadStream stream, int pageNumber, RasterCollection<RasterTagMetadata> tags)
public:
void WriteTags(
Stream^ stream,
int pageNumber,
IEnumerable<RasterTagMetadata^>^ tags
)
def WriteTags(self,stream,pageNumber,tags):
stream
A Stream that contains the file data.
pageNumber
1-based index of the page at which to write the tag.
tags
A collection of RasterTagMetadata objects to identify the data in the TIFF file.
This method writes tags into an existing file or changes tags in an existing file.
This method with TIFF and other files that support Exif metadata (JPEG, PNG).
Note Use this method carefully. LEADTOOLS will not restrict the tags that you write. If you write bad tags, the file might become corrupted. Consult the TIFF documentation for a list of predefined tags. It is recommended that you write only the user-defined tags (the tags between 0x8000 and 0xFFFF).
See the TIFF documentation for a complete list of the TIFF tags and types.
Some restrictions apply to this function if you use an IFD to indicate to which page to write the comment. See the Loading and Saving Large TIFF / BigTIFF Files topic for more information.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Svg;
string tagsFileName;
IList<RasterTagMetadata> myTags;
void EnumTagsExample(string srcFileName, string destFileName)
{
RasterCodecs codecs = new RasterCodecs();
tagsFileName = srcFileName;
myTags = new List<RasterTagMetadata>();
codecs.TagFound += new EventHandler<CodecsEnumTagsEventArgs>(codecs_TagFound);
codecs.EnumTags(srcFileName, 1);
codecs.TagFound -= new EventHandler<CodecsEnumTagsEventArgs>(codecs_TagFound);
// We read all the tags now, save them to the file
Debug.WriteLine("{0} tags read, saving them to the destination file", myTags.Count);
codecs.WriteTags(destFileName, 1, myTags);
// Clean up
codecs.Dispose();
}
void codecs_TagFound(object sender, CodecsEnumTagsEventArgs e)
{
Debug.WriteLine("Tag: Id={0}, Count={1}, Type={2}, Cancel={3}", e.Id, e.Count, e.MetadataType, e.Cancel);
// Read this tag from the file and add it to our collection
RasterCodecs codecs = sender as RasterCodecs;
RasterTagMetadata tag = codecs.ReadTag(tagsFileName, 1, e.Id);
myTags.Add(tag);
}
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