Public Overloads Function ReadGeoKeys( _
   ByVal stream As Stream, _
   ByVal pageNumber As Integer _
) As RasterCollection(Of RasterTagMetadata)

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim stream As Stream Dim pageNumber As Integer Dim value As RasterCollection(Of RasterTagMetadata)   value = instance.ReadGeoKeys(stream, pageNumber)

public RasterCollection<RasterTagMetadata> ReadGeoKeys( 
   Stream stream,
   int pageNumber
)

public:
RasterCollection<RasterTagMetadata> ReadGeoKeys( 
   Stream^ stream,
   int pageNumber
) 

Parameters

stream

A Stream containing the input TIFF image data.

pageNumber

1-based index of the page from which to read the GeoKey tags.

Return Value

To read a specific geo key stored in a file, use ReadGeoKey and to enumerate all the geo keys stored in a file use EnumGeoKeys.

This method will throw an exception if the file format does not support geo keys. To check if a file format supports geo keys, use RasterCodecs.GeoKeysSupported. You can also automatically load all the geo keys stored in a file during a load operation by setting the CodecsLoadOptions.GeoKeys property to true. The geo keys data will be stored in the result image RasterImage.GeoKeys collection.

To load all the geo keys stored in a disk file, use RasterCodecs.ReadGeoKeys(String,Int32).

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference