PROGRAM/DISPLAY
===============

 You can determine which display driver should be used for showing 
 graphics with the following functions.
 PMPro supplies display drivers for most of the available graphic
 cards (ECS, AGA, Merlin, Picasso II, Retina, EGS and CybergraphX).
 But please note that the display drivers are selectable for only
 those which corresponding with the hardware that is present in the
 system.
 Should your graphic card include special display utilities, e.g. for
 GIF, JPEG or IFF, you may use these via the function "external viewers".


 Configuration:
 --------------

    You may select the preferred display driver and configure it via 
    this menu . The following settings can be made :

  * select display driver
    Here you select the display driver module that you want
    to use. Further information on the modules are described within
    chapter "display drivers".

  * configure display driver
    Some drivers allow specific settings which are made here. They 
    are described in the chapter "display drivers".

  * 24BIT display
    Here you can specify which colour depth should be used for displaying
    24BIT graphics (24BIT, Greyscales, HAM, 256 Colours etc.).
    Should you own a graphic card module 24BIT should be kept.
    When using AGA- older ECS drivers you can specify the preferred
    colour depth for displaying 24BIT graphics. But it has to be mentioned
    that displaying in 256/16 Colours takes some amount of CPU time
    as a high quality colour reduction will be applied.
    So don't use this function when you just want to take a quick look
    at your graphic or want to do a kind of dia-show (HAM or greyscales
    would be better here).

    Note: This function only concerns the function Display (Pop-Up-Menu)
    and Dia-Show but not the function Display within image processing
    menu.

  * 8BIT display
    Just like with 24BIT displays you may specify here which colour depth
    should be used for graphics with 256 colours. This function, though,
    is mainly for Amiga's which neither include a graphic card nor
    the AGA chipset (ECS-driver) to allow displaying of 256 colour
    graphics. Should your machine contain the AGA chipset or a graphic
    card you should always select Keep to prevent unnecessary loss in
    image quality.

    Your settings will be stored via the Save function and will also
    be present after starting the program next time.
    These settings will also be used by the program MultiConvert and
    may also be saved and or modified from there.


 Information:
 ------------
    An information requester will be opened with current settings
    about the selected display driver. Please note that AGA and
    ECS drivers will also show up 24BITOPERATOR=ExtractGrayScales.
    This does not concern displaying graphics (PopUp-Menu and Dia-show)
    but instead only applies to the image processing menu.
    24BIT graphics (if no graphics card driver is selected) will 
    always be displayed there in greyscales.
    See also chapter "image processing".

    NOTE: The select menu for display drivers only indicates such
    ===== drivers for which the necessary hardware has been installed.
          For example, a Picasso-Driver will not appear if
          no Picasso has been installed in the system.


 External Viewers:
 -----------------

    This function allows binding of viewers which take over displaying
    of graphics (not with Slide-show). So you have a simple method
    of displaying graphics in 24BIT on your graphics card
    This is useful as viewer programs
    which have been especially designed for graphic cards often
    work faster and more effectively than PMPro's display modules.

    To use external viewers with PMPro you must copy them
    (e.g. Showiff, Showgif and Showjpeg for Picasso II) to the directory
    "Viewers" in the PMPro path. In addition, care has to be taken so that
    the display program is able to be CLI-started with the graphic's
    name as a command line parameter.

    Now start PMPro and select the function "Display/external viewers".

    You may now select a specific external viewer for any of the supported
    graphic file formats. Please take the following steps:

   1.) Select the file format (IFF, GIF, etc.) to which the new settings
       should be applied within the ListView "Graphicformat".

   2.) Within the ListView "Viewers" select the preferred external viewer
       (or INTERNAL for the internal viewer) for this graphic file format.

   3.) When selecting an external viewer the string gadget "command line"
       shows up the name of the display program with the addition
       "FILE$". "FILE$" is a variable which will be replaced with
       the graphic's name when calling the viewer. After FILE$ there
       may follow additional CLI-options for the specific viewers.
       You have to confirm your selections with RETURN!

   4.) This has to repeated for the other graphic file formats.


   The separate functions:

     - Save:       Saves the current setting. These will be available
                   with every new run.

     - Load:       Loads the settings from the configuration file.

     - Use:        Uses the changed settings without saving these
                   to the configuration file(s). After leaving the
                   program, these will be lost.

     - List:       Shows the current settings of the viewers within
                   a window.

     - Cancel:     Quits the menu without keeping any of the changed
                   settings.


