LEADTOOLS Image File Support (Leadtools.Codecs assembly)
LEAD Technologies, Inc

WriteGeoKeyAsync Method






A Leadtools.ILeadStream that contains the file data.
1-based index of the page at which to write the GeoKey.
GeoKey to identify the data in the Geo TIFF file.
Writes or changes a GeoKeys to an existing stream. .NET support WinRT support
Syntax
public IAsyncAction WriteGeoKeyAsync( 
   ILeadStream stream,
   int pageNumber,
   RasterTagMetadata geoKey
)
'Declaration
 
Public Function WriteGeoKeyAsync( _
   ByVal stream As ILeadStream, _
   ByVal pageNumber As Integer, _
   ByVal geoKey As RasterTagMetadata _
) As IAsyncAction
'Usage
 
Dim instance As RasterCodecs
Dim stream As ILeadStream
Dim pageNumber As Integer
Dim geoKey As RasterTagMetadata
Dim value As IAsyncAction
 
value = instance.WriteGeoKeyAsync(stream, pageNumber, geoKey)
public IAsyncAction WriteGeoKeyAsync( 
   ILeadStream stream,
   int pageNumber,
   RasterTagMetadata geoKey
)
 function Leadtools.Codecs.RasterCodecs.WriteGeoKeyAsync( 
   stream ,
   pageNumber ,
   geoKey 
)
public:
IAsyncAction^ WriteGeoKeyAsync( 
   ILeadStream^ stream,
   int pageNumber,
   RasterTagMetadata^ geoKey
) 

Parameters

stream
A Leadtools.ILeadStream that contains the file data.
pageNumber
1-based index of the page at which to write the GeoKey.
geoKey
GeoKey to identify the data in the Geo TIFF file.
Remarks

This method writes to or changes the GeoKeys in an existing file.

This method works only with TIFF files. If you also want to write the other TIFF tags and comments, use WriteMarkers instead.

Note: Use this method carefully. LEADTOOLS will not restrict the GeoKeys that you write. If you write bad GeoKeys, the file might become corrupted. Consult the GeoTIFF specification documentation for a list of GeoKeys.

Some restrictions apply to this function if you use an IFD to indicate to which page to write the GeoKey. See the Loading And Saving Large TIFF Files topic for more information.

Example
For an example, refer to WriteGeoKey(String,Int32,RasterTagMetadata).
Requirements

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

See Also

Reference

RasterCodecs Class
RasterCodecs Members
Implementing GeoKeys (GeoTIFF tags)
Implementing TIFF Comments and Tags
Working with Markers

 

 


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