The Modules tab shows you the different media processing modules
used by ImageGlue and allows you to enable or disable aspects of
ImageGlue operates on a waterfall model. Processing is attempted
with successive modules until one is found that supports the
specific image or operation. The five main modules that ImageGlue
uses are Accelerated JPEG, QuickTime Images, ImageGlue Images,
QuickTime Movies and GDI+.
For example if you ask ImageGlue to draw a file it may first
attempt the drawing using the Accelerated JPEG library. If this
option fails or is not available it may try the QuickTime Images
module. If this too fails it may try the ImageGlue Image handling
There are three types of operation possible with each module.
'Information' refers to finding out information about an image for
use in a Graphic object. 'Import', and 'Export' determine if the
module may be used for drawing or saving images.
By default the "QuickTime Movie" module is disabled as this
places a significantly greater load on the server than simple image
handling. For further details see the Movie Handling
section of this document.
The "EPSF Preview" module allows previews to be extracted
quickly from Encapsulated PostScript (EPS) files and provides a low
impact alternative to the full "EPSF/PDF Rendering" module.
The order in which import modules are tried is determined by the
parameter. However if a module is disabled in IGSettings this is a
global change and it overrides any parameter based settings. The
order in which information and export modules are used is
intelligently decided by ImageGlue depending on the operation