Leadtools.Codecs Namespace > RasterCodecs Class > ReadTag Method : ReadTag(String,Int32,Int32) Method |
Tag to identify the data in the TIFF file. Use the same tag that you specified in the WriteTag(String,Int32,RasterTagMetadata). Examples of registered tags are:
Value | Meaning |
---|---|
0x8298 | Copyright comment |
0x8769 | General Exif comments |
0x8825 | Exif GPS comments |
0x80A4 | Annotation TIFF tag |
public RasterTagMetadata ReadTag( string fileName, int pageNumber, int id )
'Declaration Public Overloads Function ReadTag( _ ByVal fileName As String, _ ByVal pageNumber As Integer, _ ByVal id As Integer _ ) As RasterTagMetadata
'Usage Dim instance As RasterCodecs Dim fileName As String Dim pageNumber As Integer Dim id As Integer Dim value As RasterTagMetadata value = instance.ReadTag(fileName, pageNumber, id)
public RasterTagMetadata ReadTag( string fileName, int pageNumber, int id )
function Leadtools.Codecs.RasterCodecs.ReadTag(String,Int32,Int32)( fileName , pageNumber , id )
public: RasterTagMetadata^ ReadTag( String^ fileName, int pageNumber, int id )
Tag to identify the data in the TIFF file. Use the same tag that you specified in the WriteTag(String,Int32,RasterTagMetadata). Examples of registered tags are:
Value | Meaning |
---|---|
0x8298 | Copyright comment |
0x8769 | General Exif comments |
0x8825 | Exif GPS comments |
0x80A4 | Annotation TIFF tag |
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 (Nothing in Visual Basic).
To read all the tags stored in a file, use ReadTags(String,Int32)
You can use TagsSupported to determine whether a certain file format supports tags.