HELIOS developer specifications

Support Index
For all developer specifications, HELIOS reserves the right to make changes and does not make any warranty regarding functionality or fitness for specific purposes.

TCP/IP Stream Print
PostScript printing support over TCP/IP (similar to AppleTalk PAP printing)

Shared-Memory Printer Driver SDK
The fastest way of printing with HELIOS to a PostScript RIP on UNIX

AppleTalk Toolkit SDK 
Allows to develop client-server applications using AppleTalk communication protocols on UNIX

OPI image reference specification
This documentation explains how the "ALDImageID" can be found in TIFF, JPEG, and EPSF files for unmodified inclusion into the OPI comments

ICC profile tagging specifications
Describes how ICC profile information are stored in image files

HELIOS "dt" tools 
(Included in HELIOS Base) The utilities allow to manipulate Macintosh files under UNIX in a way that Macintosh resource information are left intact.

"opitouch" UNIX utility
UNIX tool that allows to trigger the generation of low-resolution files on the server

HELIOS resource/data file spec
Apple resources under UNIX: Allows to fully access the Apple file attributes 

HELIOS SDK 
Allows to develop extended functionality for image handling, Unicode conversions and other plug-ins, contains the previously seperately distributed AppleTalk Toolkit, Shared Memory and OpenImage SDK's (for experienced programmers only)

AppleTalk kernel module for Red Hat Enterprise Linux 4
Red Hat does not provide AppleTalk kernel modules for Red Hat Enterprise Linux 4. For common systems pre-compiled kernel modules from HELIOS are available. Optionally you may compile kernel modules on your own.


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