'Declaration
 
Public Function TagSetValueString( _
   ByVal ImageID As Integer, _
   ByVal TagID As Tags, _
   ByVal TagType As TagType, _
   ByVal TagData As String _
) As GdPictureStatus

public GdPictureStatus TagSetValueString( 
   int ImageID,
   Tags TagID,
   TagType TagType,
   string TagData
)

public function TagSetValueString( 
    ImageID: Integer;
    TagID: Tags;
    TagType: TagType;
    TagData: String
): GdPictureStatus; 

public function TagSetValueString( 
   ImageID : int,
   TagID : Tags,
   TagType : TagType,
   TagData : String
) : GdPictureStatus;

public: GdPictureStatus TagSetValueString( 
   int ImageID,
   Tags TagID,
   TagType TagType,
   string* TagData
) 

public:
GdPictureStatus TagSetValueString( 
   int ImageID,
   Tags TagID,
   TagType TagType,
   String^ TagData
) 

Parameters

ImageID

GdPicture image identifier.

TagID

A member of the Tags enumeration.

TagType

Type of the tag to write. A member of the TagType enumeration which can be: TagType.TagTypeASCII, TagType.TagTypeByte, TagType.TagTypeLong, TagType.TagTypeShort, TagType.TagTypeSLong, TagType.TagTypeRational or TagType.TagTypeSRational.

Please ensure that you provide a correct type of the tag. For further assistance, please refer to the CIPA DC-008-2016: Exchangeable image file format for digital still cameras: Exif Version 2.31.

TagData

The formatted tag value. Please follow the formats below for individual tag types:

• BYTE tags will have this mask: "#,#,...,#".[#] : A component as unsigned 8-bit integer with a value between 0 and 255.[,] : A component delimiter.
• SHORT tags will have this mask: "#,#,...,#".[#] : A component as unsigned 16-bit integer with a value between 0 and 65535.[,] : A component delimiter.
• Integer tags will have this mask: "#,#,...,#".[#] : A component as unsigned 32-bit integer with a value between 0 and 4294967295.[,] : A component delimiter.
• SInteger tags will have this mask: "#,#,...,#".[#] : A component as signed 32-bit integer with a value between -2147483648 and 2147483647.[,] : A component delimiter.
• RATIONAL tags will have this mask: "#/#,#/#,...,#/#".[#/#] : A component will consist of two unsigned 32-bit integers denoting the enumerator and denominator. Each integer will have a value between 0 and 4294967295.[,] : A component delimiter.
• SRATIONAL tags will have this mask: "#/#,#/#,...,#/#".[#/#] : A component will consist of two signed 32-bit integers denoting the' enumerator and denominator. Each integer will have a value between -2147483648 and 2147483647.[,] : A component delimiter.

Return Value

Reference

GdPictureImaging Class
GdPictureImaging Members
TagGetValueString(Int32,Int32) Method