GDI+: Reading Exif Data From Jpegs

Scripts82 · September 11th, 2006, 11:34 PM

Hi, I'm working on a program to extract Exif data from images.
To extract the data from bits into human readable form, I use various helper functions that help me "decode" the bits. For example, to get LONG datatype, I use the following:

Code:

  
  Private Function GetLong(ByVal bits As Byte()) As Long
    Try
      Return CType(BitConverter.ToInt32(bits, 0), Long)
    Catch ex As Exception
      Return 0L
    End Try
  End Function

Things are fine for the other datatypes EXCEPT the UNDEFINED datatype recorded in the Exif data.

Anyone can teach me how to handle the UNDEFINED datatype?
I'm using VB.NET 2003.

Thanks!

Scripts82