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1995-01-22
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PolyView User's Manual
for
PolyView Version 1.10
by
Polybytes
Copyright 1995 Polybytes
Introduction
PolyView is a multi-threaded 32-bit Microsoft Windows
NT application which provides viewing and image
manipulation support for JPEG, GIF, and Windows and
OS/2 BMP files. PolyView was written and tested using
Microsoft Windows NT Workstation Version 3.5.
Registration
PolyView is distributed as shareware. To register your
copy, send $20.00 to:
Polybytes
3427 Bever Avenue S.E.
Cedar Rapids, Iowa 52403
Registered users will receive product update
notifications and problem assistance.
Support
All users are encouraged to communicate praise and
problems via e-mail to:
PolyView@aol.com
Running PolyView
PolyView.exe is the executable file which contains the
implementation of the PolyView application. PolyView
can be executed by Running it from the Program Manager
or File Manager.
A recommended way to run PolyView is to use the File
Manager's File:Associate... command to associate a file
extension (.JPG, .GIF, and .BMP) with the PolyView
application. Then simply double-clicking an image file
will execute PolyView (if it is not already running)
and display the image.
PolyView also supports drag-and-drop from the File
Manager. Simply drag-and-drop a file on a running
PolyView application, or on PolyView's icon, to display
the file.
File Menu
The File menu contains commands to Open image files, a
list of the most recently viewed image files for
selection, and the command to Exit the PolyView
application.
View Menu
The View menu contains commands to Zoom In and Zoom Out
through a chain of image magnifications, a command to
resize an image to better utilize the available display
area in the main window, and commands to turn on and
off the display of the tool bar and status bar.
Options Menu
The Options menu contains commands to adjust the
brightness, contrast, and colors of an image (when the
mode is Half Tone), a command to display the full
resolution of the source image file, a command to
change the mode of image display, and a command to
enable and disable the reading and updating of an image
specific configuration file.
Windows Menu
The Windows menu contains commands to change the
positioning of the displayed images, and the list of
active image windows which can be selected.
The Toolbar
PolyView's toolbar contains buttons for opening files,
manipulating the image appearance (if the display mode
is set to Half Tone), and viewing the PolyView About
dialog box.
PolyView's toolbar is a docking toolbar. This means
that it can be grabbed with the left mouse button and
dragged to a new position within the PolyView window.
If positioned against an edge of the window it will be
docked there. The toolbar can also be left floating
anywhere in the window, or made invisible through the
View:Toolbar command.
Zooming the Image
PolyView can change the magnification of a displayed
image in several ways.
The View:Zoom In command increases the magnification of
a displayed image by about 50%. The original window
size is maintained, with the center of the newly
magnified image the same as that at the previous
magnification.
The View:Zoom Out command decreases the magnification
and display position to the previous magnification.
An interactive zoom is provided by using the left mouse
button to draw a rectangle around the area to be
displayed in the magnified image. When the button is
released, the image will be rescaled. The View:Zoom Out
command can be used to go back to the previous
magnification.
Panning
Images that do not fit within a displayed window can be
panned (positioned) by using the scroll-bars that
appear on the window. Note that panning smoothness is
severely constrained by the selection of the Half Tone
display mode.
Image Appearance Manipulation
The appearance of an image can be manipulated when the
display mode is set to the Half Tone mode via the
Options:Image Display Mode... command. Although Half
Tone mode has a much slower display update than other
modes, it does allow the manipulation of brightness,
contrast, color intensity, and tint.
The default display mode used for viewing an image is
either the mode set the last time the Options:Image
Display Mode command was invoked, or the mode last used
for that image when the use of the image specific
configuration file has been enabled.
Image Configuration File
If the use of an image specific configuration file is
enabled through the Options menu then the manipulation
of the display mode and color/contrast settings for
that image will result in the creation of a
configuration file corresponding for the image. The
name of the file is derived from the name of the image
file by replacing the original file extension with the
extension "PVI". When this option is enabled, each time
an image is displayed it will use the settings from the
last time it was displayed.
PolyView Version History
1.00 Initial release.
1.10 Added default saving for application and image
configuration defaults.
Added "View:Resize to fit" command.
Credits
The Graphics Interchange Format(c) is the Copyright
property of CompuServe Incorporated. GIF(sm) is a
Service Mark property of CompuServe Incorporated.
Microsoft Windows NT is a registered trademark of the
Microsoft Corporation.
PolyView is in part based on the work of the
Independent JPEG Group.