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Leadtools.Codecs Namespace > Classes > RasterCodecs > Methods > ReadTag Method > ReadTag(Stream,Int32,Int32) Method
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ReadTag(Stream,Int32,Int32) Method
Summary
Gets the specified tagged data from a TIFF stream.
Syntax
public Leadtools.RasterTagMetadata ReadTag(Stream stream,int pageNumber,int id)
Public Overloads Function ReadTag( _ByVal stream As Stream, _ByVal pageNumber As Integer, _ByVal id As Integer _) As Leadtools.RasterTagMetadata
public Leadtools.RasterTagMetadata ReadTag(Stream stream,int pageNumber,int id)
- (nullable LTRasterTagMetadata *)readTag:(NSUInteger)tagIdfromStream:(LTLeadStream *)streampageNumber:(NSInteger)pageNumbererror:(NSError **)error
public RasterTagMetadata readTag(ILeadStream stream, int pageNumber, int id) function Leadtools.Codecs.RasterCodecs.ReadTag(Stream,Int32,Int32)(stream ,pageNumber ,id)
public:Leadtools.RasterTagMetadata^ ReadTag(Stream^ stream,int pageNumber,int id)
Parameters
stream
A Stream containing the input file image data.
pageNumber
1-based index of the page from which to read the tag.
id
Tag to identify the data in the TIFF file. Use the same tag that you specified in the WriteTag. Examples of registered tags are:
| Value | Meaning |
|---|---|
| 0x8298 | Copyright comment |
| 0x8769 | General Exif comments |
| 0x8825 | Exif GPS comments |
| 0x80A4 | Annotation TIFF tag |
Return Value
The tag data.
Remarks
This method is provided to support TIFF tags that you define. If no such tag exists in the image, this method will return a null reference.
To read all the tags stored in a file, use ReadTags
You can use TagsSupported to determine whether a certain file format supports tags.
Example
For an example, refer to DeleteTag.
Requirements
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© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
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