ImageEn for Delphi and C++ Builder ImageEn for Delphi and C++ Builder

 

ImageEn Forum
Profile    Join    Active Topics    Forum FAQ    Search this forumSearch
Forum membership is Free!  Click Join to sign-up
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 ImageEn Library for Delphi, C++ and .Net
 ImageEn and IEvolution Support Forum
 Marker Types and How To Use Them
 New Topic  Reply to Topic
Author Previous Topic Topic Next Topic  

w2m

USA
1990 Posts

Posted - Jun 18 2014 :  12:43:14  Show Profile  Reply

From the help file:

TIEMarkerList.MarkerType

Declaration
property MarkerType[idx:integer]:byte;

Description
Get marker type (JPEG_APP0 to JPEG_APP15 and JPEG_COM).

What are the JPEG_APP0 and JPEG_APP15 and JPEG_COM marker types?
How and why they are the marker types different and when should you use one or the other marker type?


Please add more info to the help file and provide some help.


Bill Miller
Adirondack Software & Graphics
Email: w2m@hughes.net
EBook: http://www.imageen.com/ebook/
Custom Commercial ImageEn Development

xequte

39053 Posts

Posted - Jun 18 2014 :  18:57:46  Show Profile  Reply
Hi

I'm not sure that you would generally need to access the JPEG markers directly. It is better to use the EXIF_* and XMP properties.

A good description of the JPEG markers is at:

http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
Jump To: