Overview

Dview is a utility which can be used to view the contents of disk files.  The view is represented in either hexidecimal, octal or decimal formats.  This allows the user to see inside of a binary file for example.   Dview also allows the user to update the contents of the file being viewed.  The update is performed on a byte by byte basis.  Dview would not be a good text editor.   It  is however a usefull tool for fixing problems, assuming the problem has something to do with the data content.  Dview cannot be used to fix or update system level information regarding the  file.  Dview was designed for use by programmers with a knowledge of format and content of the file being viewed or updated.

Screen Layout

The information contained within the open file will be displayed in two formats.  The left side of the display shows data in numeric (octal,decimal or hexidecimal) representation.  The right side shows the same information in ASCII format if possible.  Unprintable characters will be shown as '.' characters.  Each display line will show 16 bytes of the file.  Each page will show upto 25 lines at 16 bytes each.  The display also shows the beginning and ending file locations of the current page at the top of the window.  The location values are represented in decimal, hexidecimal or octal depending on the data display representation.  Also shown is the current location of the cursor if the mouse happens to be pointing to a valid location.  Mouse functions allow for editing and viewing bytes in binary format.


Copyright
        DVIEW - Disk File View Utility

                                  Version 1.20

Copyright (c) Bill Firestone 1995 - 1996

                                All Rights Reserved

This program is distributed as is. The author assumes no liability
for any dammages resulting from its use.


Contents
Table of Contents

Overview

File Menu

Options Menu

Tool Bar

Mouse Functions

Copyright

Registration


File Menu
File Menu - Options

This menu is used to perform the basic file handling functions of the DView application.  From this menu you will be able to select a file to view, define the printer options, print the contents of a file, close a file and exit the application.

Open - Allows for the selection of a file to view.

Print - Allows the user to print the contents of the openned file.

Close -  Closes the currently openned file.

Exit - Exit DVIEW and close any open file.


Options Menu

Use this menu to change the DView display from either hexidecimal, octal or decimal representation of the file data.  The menu will check the currently selected option.  To change the selection you can click on another selection or press the appropriate Base key on the tool bar.

Decimal - Causes DVIEW to display file content in decimal representation.
Hexidecimal - Causes DVIEW to display file content in hexidecimal representation.
Octal - Causes DVIEW to display file content in octal representation.


Tool Bar

The tool bar contains the following controls:

|<  	- Causes DVIEW to page backward to the beginning of the file.

<   	-  Causes DVIEW to page backward one page.

>   	-  Causes DVIEW to page forward one page.

>|  	-  Causes DVIEW to page forward to the end of the file.

GO	- This control will prompt the user for a specific location within the file to go to.  The  dialog expects input in the appropriate numeric base. ie. decimal, hexidecimal or  octal.  Dview will go to the page the location can be found on.  The location requested will be highlighted within the page.

b8  	- Switches all display and dialogs to represent locations and data in octal.

b10 	- Switches all display and dialogs to represent locations and data in decimal.

b16 	- Switchs all display and dialogs to represent locations and data in hexidecimal.


Mouse Functions

By pointing the mouse at a specific byte within the numeric side of the display Dview will update the current location shown on the right side of the tool bar.

The mouse buttons perform the following actions:

DOUBLE CLICK LEFT BUTTON - This will cause DVIEW to open the current location pointed to and allow the user to key in a new value for the location.  The entry dialog prompts the user to enter information in either decimal, hexidecimal or octal values.  Since only one byte of information is being updated the upper range of entry is 255, FF or 377 respectively. Once a new value is keyed in the dialog clicking the OK button will immediately update the disk file.  Clicking the Cancel Button will discard the update and return control to DVIEW's main window.

DOUBLE CLICK RIGHT BUTTON  - This will cause DVIEW to open the current location pointed to and show the user the byte value represented in binary (o's and 1's).


Shareware

DVIEW - Copyright (c) Bill Firestone  1995 -1996  All Rights Reserved.

This program is Shareware, you may evaluate if for a period of no more than 30 days. After this time you must either register (read REGISTRATION below and REGISTER.TXT) or remove it from your system.  Failure to comply with this condition is a violation of United States and international copyright law.  This program is fully functional,  however you will recieve a later version upon registration. Please register if you use this program for more than the 30 day  trial period.

This program is distributed as is. The author assumes no liability for any dammages resulting from its use.

Registration

 You may register by check for a fee of $35 US.  Fill out REGISTER.TXT and send it along with your check to (personal,cashier and company checks accepted):

        Bill Firestone
        P.O. Box 802336
        Santa Clarita, CA 91380-2336
        USA

 Make checks payable to: Bill Firestone

Checks must be in US dollars and drawn on a US bank .