Description
Sets a tag with the the supplied data in the image's tag list.
Syntax
| Visual Basic |
|---|
Public Sub TagSetDataPtr( _ ByVal TagNbr As Long, _ ByVal TagType As Integer, _ ByRef pBuffer As Byte, _ ByVal BufferSize As Long _ ) |
Parameters
- TagNbr
- The tag number of the tag to set.
- TagType
A long expression evaluating to the tag type to set.
-
TAG_BYTE (1) - Byte
-
TAG_ASCII (2) - Ascii character
-
TAG_SHORT (3) Short
-
TAG_LONG (4) Long
-
TAG_RATIONAL (5) Rational
-
TAG_SBYTE (6) Signed byte
-
TAG_UNDEFINE (7) 8 bit byte
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TAG_SSHORT (8) Signed Short
-
TAG_SLONG (9) Signed Long
-
TAG_SRATIONAL (10) Signed Rational
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TAG_FLOAT (11) Float (4 Bytes)
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TAG_DOUBLE (12) Double (8 bytes)
-
- pBuffer
- The pointer to a memory block containing the tag data to set.
- BufferSize
- The size in bytes of the tag data to set.
Remarks
If the specified tag does not exist, the method will create the tag and set its data to the data pointed to by pBuffer. If the specified tag exists, it will be replaced.
It is best to use this method when setting a large block of data.
If you have a Global Handle to the data, use the TagSetData method.
Note: Available in Professional Edition.