QuickSlideshow version history
Changes in version 2.0
- The ability to create thumbnail files was added. Thumbnails are files with
a small copy of selected pictures in them. Pictures can be added to, or deleted
from, thumbnail files with ease. You can drag with the mouse to move or copy
thumbnails, including to other thumbnail windows. Thumbnails can be used to
start a slideshow.
- The program was renamed from "GIF Slideshow" to "QuickSlideshow"
to reflect the fact that it now processes many different file formats, not
just GIF pictures.
Changes in version 1.5
- You can now print the current picture, by selecting "Print" from
the File menu, or pressing Command-P. Various printing options, such as alignment
on the page, expansion of small pictures, shrinking of large pictures can be
controlled by the "Printing options" dialog box, found under the
- Added recognition of Targa (.TGA) files.
- If your monitor is set to more than 256 colours (i.e. thousands or millions
of colours) then QuickSlideshow no longer clears the screen to black between
each picture, thus eliminating a slight flicker between frames. It is still
necessary to clear the screen to black if the monitor is set to 256 colours
or less, in order to avoid colour changes occurring to the picture as the palette
- Fixed a problem where if you scanned a folder by dropping the folder onto the
QuickSlideshow icon (in the Finder), and no pictures were found, that certain
menu items (such as Open) were subsequently disabled.
- Fixed a problem where the "splash screen" which normally appears
each time the program is started briefly flickers onto the screen if you have
not used QuickSlideshow before, to be replaced by the "Welcome" help
- Changed the check for monitors with 256 colours to be for 256 colours or more.
(If your monitor is set to less than 256 colours you will be warned on program
startup that you will not view pictures optimally. This warning can be disabled
by changing the program preferences.)
- Two new "help" screens were added - a screen describing the printing
options, and the "version history" of the program was moved from
the "general help" screen to its own "version history"
- Fixed a problem where PICT files were not being drawn properly because the
background was not cleared to white before displaying them.
Changes in version 1.4
- Added recognition of the TIFF file type: CMYK colour
- When processing TIFF files, can now recognise the "horizontal predictor"
tag, which is used by some programs (such as Adobe Photoshop (tm)) when writing
out compressed TIFF files
- Fixed a bug where TIFF files with "IBM" byte orders where not processed
- Added support for BMP pictures (a popular graphics format used by Microsoft
Windows (tm)). BMP pictures can be written back to disk as TIFF format.
- When scanning disks or folders for pictures, aliases (under System 7) are now
resolved. In other words, you create a folder containing aliases to pictures
you would like to view. Then, by dropping the icon for the folder onto the
icon for QuickSlideshow, it will resolve the aliases and display the appropriate
- You can now go *backwards* through a picture sequence by pressing the keys:
Command/Left-arrow. Similarly, you can use Command/Right-arrow to go forwards.
- You can now disable the "read-ahead" option (which reads the next
picture while the current one is being displayed). This is principally for
users who want to go backwards through pictures. Reading ahead the next picture
forwards will not increase the speed of viewing pictures when you are going
- You can now disable the "loading first picture/loading second picture"
- Some CDROM drivers appear to add ";1" to file names on DOS disks,
others don't. This can result in "File not found" errors when processing
a tag file created under a different CDROM driver. To work around this problem,
if QuickSlideshow gets a "File not found" error when opening a file,
it adds/removes ";1" from the name, as appropriate, and tries again.
- Added a "splash screen" shown during program startup to thank users
who have paid their ShareWare fees. This screen does not slow down operation
of the program, as it is removed when either: a) There is something to do,
such as displaying pictures; or b) 30 seconds elapses; whichever comes sooner.
- Fixed a bug where QuickSlideshow could not read a TIFF file that it had just
- Corrected a number of bugs relating to converting GIF pictures which were not
256 colours to TIFF files.
Changes in version 1.3
- Now handles Paintbrush PCX/PCC files. This is a very popular file format on
MSDOS systems. The addition of this capability was inspired by the discovery
of the CDROM: "The Mother of All Clip Art" produced by Velvet Software,
Conneticut, containing over 20,000 PCX pictures. PCX/PCC file types supported
include monochrome, indexed colour and RGB colour.
- Can now read "RGB" TIFF files. Previous versions only supported grey-scale
and indexed colour.
- Can now write PCX files in TIFF format.
- Can now write MacPaint files in TIFF format.
- Added an option to allow the program to automatically switch your monitor to
- Added a "folder" pop-up menu to the "Find picture by name"
dialog box. This allows you to see the folder names that pictures were in when
your disk/CDROM was scanned. This typically allows you to jump to a "category"
of pictures (e.g. FISH, LANDSCAPES) by selecting the appropriate folder name.
- Added a "file name" pop-up menu to the "Find picture by name"
dialog box. This allows you to see the names of each picture in the current
"folder" that the picture you are currently viewing is in.
- When searching for a picture by name in the "Find picture by name"
dialog box a "progress bar" is now displayed so you can see how fast
the search is proceeding. The progress bar dialog box includes a "cancel"
button so you can cancel a lengthy search if desired.
- Fixed a problem where if the "volume name" on a CDROM was null (binary
zeroes), that volume could not be found when processing a tag file. A different
method of scanning for mounted volumes has corrected this.
- Writing tag files is now faster, as the code which determines the name of the
current folder and current volume name has been optimised.
- A problem with some pictures being scaled incorrectly (were too wide) has been
- Files of type "BINA" as well as "TEXT" are now scanned
- Fixed a problem with recognising "comments" in certain types of GIF89a
- When using the "Open" selection from the "File" menu, only
files which QuickSlideshow thinks are GIF/TIFF (etc.) pictures, or tag files,
will be shown in the "open" dialog box. Previously any text files
would have appeared here, even though they were not picture files.
- Fixed a problem where holding down a "modifier" key (Shift, Command
or Option) would not correctly pause the display during automatic advance if
the "delay between pictures" was set to zero seconds.
Changes in version 1.2
- Opening a "tag" file is now about 7 times as fast as in version 1.1,
due to various efficiency improvements. For example, the "GIFS Galore"
CDROM tag file now opens in 14 seconds compared to 1 minute and 40 seconds
in version 1.1.
- If you have spent more than 15 seconds scanning a disk or CDROM for pictures,
and have not chosen to save the current picture sequence as a tag file, you
are now prompted to do so when stopping the slide show. This is for the benefit
of users who may have found creating tag files confusing, or for those who
simply forget to do so.
- Alert boxes that have "Yes" or "No" buttons now permit
you to type "Y" or "N" on the keyboard to accept those
- A "welcome" screen is automatically displayed the first time the
program is run.
- The ability to search for pictures by name (or partial name) has been added
(see section: Finding a picture by name or number
for more details).
- Some TIFF files are now supported, specifically: greyscale and palette colour,
which have either no compression, LZW compression or PackBits compression.
Further TIFF support will be added in future releases. In particular, QuickSlideshow
can now read TIFF files created by it using the "save GIF picture as ..."
- Attempts have been made to improve Autodesk Animator animations, although there
is still room for improvement. If possible, ".FLI" files are read
into memory in their entirety, and then processed from memory. This can improve
animation speed. Also, errors in animation files no longer required a program
- Documentation has been moved from separate word processor files to online help
screens. Users that prefer printed documentation can copy the help screens
and paste them into a blank word processor document, and then print them.
- Whether or not the menu bar is hidden during picture displays is now an option
(Command-M to toggle it). If the menu bar is visible it will crop (hide) the
portion of the picture it covers.
- QuickSlideshow can now operate in the background, providing an impressive (if
somewhat memory intensive!) backdrop of changing backgrounds to your other
applications. We suggest you set the delay between frame advances to a high
figure (say 30 seconds or more) or your other applications will be frequently
interrupted by QuickSlideshow as it decodes each new picture. If you need to
access your desktop, click on the picture to bring QuickSlideshow to the front,
and then select "Hide picture" (Command-H).
- You can now optionally show pictures larger than the screen at full size, and
use the mouse or keyboard to scroll around and see the various parts of the
picture (option-drag with the mouse to scroll, or use the arrow keys on the
- Various "memory leak" problems fixed - previously stopping one picture
sequence and starting another did not release memory used by the first sequence.
- Various "preferences" and "information" options moved from
the menu bar to dialog boxes. This makes the menus less cluttered, allows more
logical command-key equivalences, and makes it easier to see what the current
preferences are. Press Comand-J to see slideshow preferences, Command-K to
see general preferences, Command-I to control what information is displayed
at the bottom of each picture, and Command-U to see what file types will be
processed when scanning folders and volumes.
- An option to "fix black pixels" was added in an attempt to correct
pictures which were incorrectly saved with erroneous palette entries for some
- The "QuickSlideshow prefs" file is now saved in the System/Preferences
folder rather than the folder containing QuickSlideshow.
- An option to open an individual picture was added (Command-O).
- Looping, and automatic advance, is disabled if only one picture is being viewed.
- Various frequently-used actions (such as switching between manual and automatic
advance) have been added to the "function keys" available on extended
keyboards (for example, F5 switches to manual advance). Unlike most of the
other command-key equivalents which "toggle" actions, most of the
function key actions are not toggles, which means you do not have to remember
the current program state before changing it.
- An ability to dither pictures which are scaled has been added. This can particularly
improve pictures which are shrunk to less than 100% (because the original is
larger than the screen). Dithered pictures tend to not have vertical and horizontal
lines through them. However dithering can be quite slow, and is recommended
to be turned off, unless you either: a) don't mind waiting; or b) have a very
- The program options "automatic advance", "loop" and "random"
have been placed into an "options" dialog box (accessible from the
Options menu, or by pressing Command-J), in addition to appearing under the
Slideshow menu. Some users may find looking at this dialog box easier than
using the mouse to pull down the Slideshow menu, particularly when in the middle
of viewing pictures.
- When going to a picture by name or number, it is no longer necessary to wait
while the program displays the next picture (the one it had already read ahead
to save time). When changing the picture sequence like this, you now see the
"loading first picture" window again, while the program repositions
to the correct place in the picture sequence.
- Recognition for MacPaint pictures, and PICT files was added.
Comments to Gammon Software support
Page updated on Wednesday, 15 December 2004