Public Shared Function TagsSupported( _
   ByVal format As RasterImageFormat _
) As Boolean

Visual Basic (Usage)	Copy Code
Dim format As RasterImageFormat Dim value As Boolean   value = RasterCodecs.TagsSupported(format)

public static bool TagsSupported( 
   RasterImageFormat format
)

public:
static bool TagsSupported( 
   RasterImageFormat format
) 

Parameters

format

The RasterImageFormat to check

Return Value

This is a helper method that can be used to detect if a certain raster file format supports tags. For example, ReadTag, RasterCodecs.ReadTags(String,Int32) and EnumTags can be used to read the tags stored in a file. If the file format supports tags, such as JPEG or TIFF, then these methods will successfully return the tags stored.

However, if the format does not support tags, such as BMP, an exception will be thrown by the RasterCodecs objects. You can use TagsSupported to check if the file supports tags and only call the read tags methods if the return value is true.

Note that the RasterCodecs option uses this method internally to check if the file supports tags when the CodecsLoadOptions.Tags is set to true and only read the file tags if the file format supports them.

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

Reference