Here are some tips for using Turbo View:

•  This help dialog, used throughout Turbo View, works best if System 5.0 or later is available and if the Geneva 9 point font is installed.

•  Turbo View's window can be re-sized with the "pop-and-size-box".  Moving the pointer to the lower right-hand corner of Turbo View's window will pop-up the size box.  Clicking and dragging at this time will re-size the window.

•  Hitting the Space-bar will activate the "turbo" hand-grabber, which is used for dragging the current picture about the window.  Dragging the mouse pointer outside the window area will scroll the picture in the respective direction.  The turbo hand-grabber can be identified by the small lightning bolt on the back of the hand pointer.

•  Hitting Command-Space-bar will will activate the normal hand-grabber.  It functions the same as the turbo hand-grabber, but the picture is moved slower.  This is useful for when you want more control over picture movement, whereas the turbo hand-grabber is useful for quickly moving large pictures.

•  Holding down the Command-key when Turbo View is opened will keep Turbo View's menu in the menu bar at all times.  Usually, if Turbo View isn't active, it will remove its menu.  This feature is useful for those with large displays.  Note that it isn't useful if MultiFinder is in use.

•  Using the Shift-key with the pencil or eraser tools will constrain movement to either vertically (up/down) or horizontally (left/right).

•  Using the Option-key with the pencil or eraser tools will use the opposite color, therefore allowing you to draw in white or erase in black.

•  Double-clicking the Selection tool will select the entire picture.  Note that if no selection is made, the default is the entire picture.

•  You may notice Turbo View's window moving a little to the left or right after re-sizing or zooming it.  Turbo View does this to align the window on memory boundaries.  Let's just say it makes drawing to the screen faster!

•  To switch between the different levels of FatBits (from 2x to 32x), use the "+" (Plus) and "-" (Minus) keys.

•  If you want to see how the different GIF Settings affect the picture, we recommend the use of the "Save data for re-rendering" option (available in the GIF Settings dialog).  This allows you to re-render the picture without having to open and wait for it decode again.

•  Using the Save data for re-rending option can consume large amounts of disk space.  A hard disk drive is almost mandatory.  A 640 x 400 picture, for example, will require 256K of disk space.

•  When Turbo View is locked (in demo mode), the following obstacles are in effect:
    •  Pictures are obscured with the message "Turbo View" centered on them.
    •  Vertical bars are drawn on the image when saved or copied to the clipboard.
    •  Turbo View reminds you that it is locked every time you Open, Save, Copy or Paste.

•  If you should ever run into a problem with Turbo View, please use our Mug Shot product to report your problem.  Mug Shot can be found on your Turbo View product disk.

••  GIF89a Notes:  The following explains how Turbo View handles the new GIF89a specification, which was released on August 1, 1990.

•  To display GIF 89a text blocks correctly, make sure you have the Courier 10, 12, 18 and 24 point sizes installed in your System or the Monaco 9, 12, 18 and 24 point sizes.  The GIF Comments display requires the Courier 9 point font.

•  Text is either drawn as black on a white background or white text on a black background.  Transparent text is drawn in outline mode with no background (so you can read it when overlayed on the dithered image).

•  If Turbo View beeps once while converting a GIF picture, it is expecting your response before it continues.  To continue decoding the image, click the mouse button once.  Note:  It is standard procedure for a time delay to be specified with the user input flag, so decoding will continue when the timer expires or you click the mouse, which ever occurs first.  It is also possible to have a delay without your response, therefore decoding will continue after the timer has expired which you cannot interrupt.

•  When Turbo View is processing a GIF89a feature (drawing text or waiting for your response), none of the status indicators in the progress window will be hilighted.  This is the only method to determine if Turbo View is processing a GIF89a feature.

•  Restore to Previous restores the image to the state it was before displaying the current image.  If there is not enough memory available, the image is Restored to the "background" color.

•  Transparency is fully supported.  With non-GIF89a viewers, you will see borders (or "transparency mask") around objects that should not be there.  When transparency is handled properly, you will not see the borders.

•  Currently, Turbo View ignores the Aspect Ratio feature of the new specifications.

Please refer to the documentation for more information about any of these features. The documentation is provided when you register.