home *** CD-ROM | disk | FTP | other *** search
- _____________________________________________________________________________
-
- VBIT: Visual Basic Invisible Tools 1.40
- _____________________________________________________________________________
-
- > WHAT IS VBIT?
-
- VBIT is a library of useful and timesaving routines which
- makes life easier for any Visual Basic programmer.
-
- Contents of VBIT:
-
- + Dynamic one/two-dimensional tables (arrays) consisting of dynamic text-
- strings enables you to manipulate significantly bigger amounts of data
- than Visual Basic alone can handle. Smart sorting, seek, read files,
- write to file, linking to spreadsheets etc. is also included.
-
- + Simple, but very powerful routines for string-manipulation
-
- + Simplified reading/writing of INI-files compared to API-calls
-
- + Routines for reading system-information, i.e. available
- disk space, memory, screen resolution etc.
-
- + Encryption algorithms (with no "back-door") enable you to easily
- protect your data against unwanted intruders.
-
- + Elegant copy protection of software and applications. This software
- (VBIT) uses the same copy protection itself, so try it out and evaluate.
-
- VBIT is an InfoTech AS product. This package is intended for
- Visual Basic, but the same software will soon be available for C++.
-
- Please see the enclosed files VBIT.WRI, VBITABLE.WRI, VBITFILE.WRI and
- VBITVTSS.WRI (standard Windows 3.1 Write format - can also be read
- from MS Word) for a detailed description of routines and functionality.
-
- This software is distributed as "shareware" (see below for details), and
- we have and will continue to relaease regular updates. If this file is
- more than a couple of months old (see file-date), it is likely that there
- is a newer release in circulation, so call your favorite BBS to get the
- most recent version.
-
- You can visit our WWW-pages to check: http://www.prodat/infotech/
- You can visit our WWW-pages to check: http://www.traders.no/
-
- The latest release of VBIT will also always be avaliable at Trader's
- Mascot BBS, running Excalibur BBS (+47/7012-9014 or +47/7012-5102).
-
- Any comments and/or suggestions are welcome, and can be sent/mailed to:
-
- InfoTech AS infotech@telepost.no
- Strandgt. 207 """"""""""""""""""""
- N-5004 BERGEN, Norway
-
- or
-
- Trader's Mascot AS bjonor01@mimer.no
- Postboks 3098 Sentrum ^^^^^^^^^^^^^^^^^
- N-6001 AALESUND, Norway
-
- _____________________________________________________________________________
-
- NB: This file contains special characters based on WINDOWS character set.
- If you use a DOS program to read this, special characters will not
- display correctly, and the examples in this document will not be
- readable.
- _____________________________________________________________________________
-
- > TABLES
-
- A table is a matrix of text-strings, which can be thought of as an
- invisible spreadsheet in RAM. The tables can be dimensioned according
- to your needs, and dynamic changes can be made at any time. You can
- read tables directly from a number of file formats, and the tables are
- automatically dimensioned according to the file-contents. The same
- applies for writing tables to different file formats.
-
- Reading and writing data from/to tables, seek and sort are very fast
- operations.
-
- The sorting routine for tables has some unique features. This sorting
- routine sorts numbers embedded in strings in a sensible fashion.
-
- For example, if you are sorting strings of the format "Number x of y"
- where 'x' and 'y' are numbers, then:
-
- Ordinary sorting
- ----------------
- Number 1 of 100
- Number 10 of 100
- Number 100 of 100
- Number 2 of 100
- Number 20 of 100
- Number 20 of 50
-
- VBIT SmartSort
- --------------
- Number 1 of 100
- Number 2 of 100
- Number 10 of 100
- Number 20 of 50
- Number 20 of 100
- Number 100 of 100
-
- Sorting of special characters is greatly improved compared to most
- competing sort-routines. Characters like /E/╔/e/Θ/Φ/δ/Ω/ are treated as
- variations on the same letter, i.e. the difference is only significant
- for the sort-order when the remaining characters are identical.
-
- VBIT SmartSort
- --------------
- Line 1: Sequence 10
- Line 2: SequΦnce 20
- Line 3: Sequence 30
- Line 4: SequΦnce 30
- Line 5: SequΦnce 40
- Line 6: SequencΦ 50
- Line 7: SequencΘ 60
-
- Between lines 1 and 2 the difference between "e" and "Φ" has no
- significance since the remaining characters are different. The same
- applies for lines 2 and 3. The only difference between lines 3 and 4
- is "e"/"Φ", and consequently the record containing "e" will be sorted in
- front of the other, since "e" is defined before "Φ" in this package.
-
- You may say that this is trivial, but may change your mind when you
- see how most other programs handle sorting of the same records:
-
- Ordinary sorting
- ----------------
- Line 1: Sequence 10
- Line 2: Sequence 30
- Line 3: SequencΘ 60
- Line 4: SequencΦ 50
- Line 5: SequΦnce 20
- Line 6: SequΦnce 30
- Line 7: SequΦnce 40
-
- VBIT contains several different seek-routines for finding data in a
- table, i.e. exact match, wildcards and binary-search (data in a sorted
- table).
- _____________________________________________________________________________
-
- > STRING-HANDLING / INI-FILES
-
- Most Visual Basic programmers sooner or later face the "problem" that
- most program-utilities for returning strings, anticipate that the calling
- program has allocated space for the returned string. To illustrate this
- we will show you the difference between reading INI-files traditionally
- (via API) and using VBIT:
-
- ' Read name of starting program for Windows from SYSTEM.INI:
-
- Declare Function GetPrivateProfileString% Lib "Kernel" (ByVal pAppName$,
- ByVal pKeyName$, ByVal pDefault$,
- ByVal pReturnedString$, ByVal nSize%, ByVal pFileName$)
-
- txt$ = String$(80, " ") ' Reserve space for 80 chars
- len% = GetPrivateProfileString("boot","shell","",txt$,80,"SYSTEM.INI")
- StartProg$ = Left$(txt$, len%) ' Possible result: "progman.exe"
-
- ' Same as above using VBIT (VBIT.BAS is included in the project):
-
- StartProg$ = IniFileGetString("SYSTEM.INI", "boot", "shell")
-
- I think we have made our point, and showed beyond reasonable doubt which
- method is the easiest to PROGRAM, MAINTAIN and last but not least to
- UNDERSTAND!
-
- VBIT provides a number of powerful routines for string-manipulation
- that Visual Basic "lacks": pick words from strings, swap parts of strings,
- formatting, translation between DOS and Windows character sets and much
- more. See VBIT.WRI for a complete and detailed documentation.
-
- _____________________________________________________________________________
-
- > SYSTEM INFORMATION
-
- Routines that gives easy access to system-information: screen resolution,
- number of colors, free disk-space, available RAM, disk(ette)-unit status
- etc. Details on environment variables and directory information can be
- read directly into tables.
-
- _____________________________________________________________________________
-
- > ENCRYPTION
-
- If you want to protect data against unwanted intruders, you can achieve
- this by using the VBIT encryption routines. These routines are not
- based on any standard algorithm specified by "Big Brother", and has
- therefore no "back door". There is no possibility whatsoever to recover
- an encrypted string without the correct key - not even for those who
- made the program.
-
- The routines are very simple in use; you specify the text-string to be
- coded together with the "secret key" and the result is a completely
- unreadable string. When decoding the same string, you specify the
- unreadable string and its key, and the original string is returned.
- Using wrong keys will not unlock any doors.
-
- Example:
-
- TextIn$ = "Private information..."
- Secret$ = "Sesam$⌡zaM"
- Crypt$ = Encrypt (TextIn$, Secret$)
- TextOut$ = Decrypt (Crypt$, Secret$)
-
- ' TextOut$ and TextIn$ will be identical, and
- ' Crypt$ will contain an unreadable string.
- _____________________________________________________________________________
-
- > COPY PROTECTION
-
- The program library VBIT.DLL is copy protected. If you have no valid
- license, you will be made aware of this by an annoying pop-up window
- reminding you to contact InfoTech AS and purchase a copy. Most of the
- VBIT routines will for the time being function without the annoying reminder,
- but when you use table-functions or the encryption routines, the testing
- for a valid license is activated.
-
- The only way to get rid of the "license-alarm" is to purchase a license
- code from InfoTech AS. The license-code consists of a 6-letter alphanumeric
- string which is derived from the name of the licensee. The license-name and
- corresponding code must be inserted into all programs using VBIT:
-
- status% = LisenseVBIT("User Name, Address", "CODE01")
-
- This code is inserted in Form Load in the applications startup form.
-
- All applications using VBIT must have a license for the name holding
- Copyright for the application. INFOTECH.INI will contain a list of all
- programs using VBIT. If the application is using a licensed version
- of VBIT, the licensee name will appear as the copyright holder of the
- application. This means that an application using a "borrowed" license
- code will appear as copyrighted by the name connected to the violated
- license. Somebody actively programming a call to LicenseVBIT using
- somebody else's name and code, can not claim to have acted in good faith.
-
- A similar copy protection scheme is available for all applications
- using VBIT, provided a valid license:
-
- The call code$ = LicenseGetCode("User Name","SECRET_KEY")
- will return a code for the given user name. This call is supposed
- to be used in a program only available for the distributor of
- the application.
-
- The following statement is put into the application:
- status% = LicenseProgram(UserName$, Code$, "SECRET_KEY")
-
- Depending on the result, status%, your application can determine whether
- the username/code is valid for this program, and take appropriate actions.
- Different applications can have different keys ("SECRET_KEY_PROG2").
-
- When LicenseProgram has been called with a valid code, the user name will
- be inserted in INFOTECH.INI connected to the name of your application in
- the group [License].
- _____________________________________________________________________________
-
- > SHAREWARE: RULES FOR USE AND DISTRIBUTION
-
- VBIT is distributed as "shareware". This term must not be mixed up
- with "Freeware" or "Public domain". "SHAREWARE" is a method for
- distribution of software which is protected by COPYRIGHT like all other
- commercial software.
-
- The "shareware" concept gives potential users the opportunity to evaluate
- the software before they decide whether they want to pay for the right
- to use it.
-
- It is perfectly legal to use this software for testing in a trial period.
- A reasonable test period is estimated to be 30 days. Using the software
- beyond a reasonable trial period, or including it in a commercial
- program without a legal license, will be regarded as a violation of
- our copyright.
-
- An important part of the "shareware" concept is that the user must have
- a chance to test all parts of the software. If the software is only
- partly working, or deliberately causes erroneous results, it should not
- be called "shareware", but "crippleware". Some "shareware" software
- is also called "nagware" because of the annoying pop-ups constantly
- reminding the user about the lack of license. VBIT is using this
- approach, but you can still test all parts of it.
-
-
- VBIT can be distributed freely on the following conditions:
-
- - All files in this package must be included (see PACKING.LST).
-
- - The files must be unchanged.
- Archive file name must include version number (VBIT120.ZIP -> ver 1.20).
- The date and time of the files should not be changed.
- Time must correspond to the version number.
-
- - No files can be added to the package, with one exception: The BBS
- distributing this software may include a short text file with a
- short presentation of the BBS.
-
- - It is not allowed to charge for the distribution of this software,
- except for normal downloading fees (if any), without the express
- permission from InfoTech AS.
-
- We encourage you to give copies of this software to your friends and
- colleagues, and to upload it to any BBS that you use. For sample
- descriptions suitable for BBS file listings, please see FILE_ID.DIZ
- and DESC.SDI.
-
- _____________________________________________________________________________
-
- > COPYRIGHT / LIABILITY / CONDITIONS FOR USE
-
-
- ! VBIT Copyright (C) 1996 InfoTech AS, BERGEN, NORWAY !
- ! Distributed by: Trader's Mascot AS, Aalesund, Norway !
- ! ________________________________________________________________ !
- ! Use this software only if you accept the following conditions: !
- ! """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" !
- ! THE SOFTWARE VBIT AND ACCOMPANYING DOCUMENTATION IS PROVIDED !
- ! AS IS WITHOUT WARRANTY OF ANY KIND. ALL USE IS AT YOUR OWN RISK. !
- ! INFOTECH AS CAN NOT BE MADE LIABLE FOR ANY DAMAGES CAUSED BY USE !
- ! OF THIS SOFTWARE AND DOCUMENTATION. OWNER OF A LEGAL LICENSE FOR !
- ! VBIT IS COMMITTED TO KEEP THIS CODE UNAVAILABLE FOR OTHERS. !
- ! DELIBERATE DISTRIBUTION OF A LICENSE CODE WILL BE REGARDED AS !
- ! A SEVERE VIOLATION OF THE LICENSE CONDITIONS AND A VIOLATION OF !
- ! INFOTECH'S COPYRIGHT, AND WILL BE PROSECUTED. !
- _____________________________________________________________________________
-
- > LICENSE-CODES / PRICE
-
- Contact InfoTech AS or Trader's Mascot AS to get a license code.
- Current prices are:
-
- In Norway: NOK 495 incl. M.V.A.
- All other countries: US $ 65
-
- A valid license code gives you the right to distribute VBIT.DLL
- with your programs.
-
- _____________________________________________________________________________
-
- > ORDERING INFORMATION / PAYMENT:
- Price in Norway : NOK 495,- incl. mva. all other countries : $65
-
- Send to: Trader's Mascot AS
- Postboks 3098 Sentrum
- N-6001 AALESUND, Norway
-
- ___________________________________________________________________________
- | |
- | The following information must accompany the payment: |
- | ===================================================== |
- | |
- | Name _________________________________________________________|
- | |
- | Address _________________________________________________________|
- | |
- | Postcode _________________________________________________________|
- | |
- | City _________________________________________________________|
- | |
- | Country _________________________________________________________|
- | |
- | Date ___________________________ Phone: ____________________|
- | |
- | Has paid ___________ for VBIT license (see PRICE above): |
- | _ |
- | [_] Check / money order enclosed |
- | [_] BankGiro: 5353.05.22667 (Den Norske Bank) |
- | [_] PostGiro: 0826.06.97588 (Post cheque) |
- | |
- | [_] Visa [_] American Express [_] EuroCard |
- | [_] MasterCard [_] Diners International |
- | |
- | Creditcard number :_________________________________________ |
- | |
- | Expiration date :_________________________________________ |
- | |
- | Signature :_________________________________________ |
- | |
- | Want to receive the license code [_] via post. |
- | [_] via Fax: ___________________|
- | VBIT version: ________ |
- | |
- | Where did you find VBIT? _______________________________________ |
- |_________________________________________________________________________|
-
- Send above information to Trader's Mascot AS or by fax to
- Fax number +47 7012 4090
-
- If you pay directly to the bank account or international Post services,
- you may prefer to send the above information as E-mail via internet to:
-
- infotech@telepost.no or bjorn@traders.no
-
- We will send the code to you as soon as we have confirmed the payment.
-
- You may also call the Trader's Mascot BBS, running Excalibur BBS:
- +47/7012-9014 or +47/7012-5102.
-
- ____________________________________________________________________________
-
- > FEEDBACK
-
- If you have comments, error reports, suggestions for improvements and
- extensions, please write to:
-
- InfoTech AS infotech@telepost.no
- Strandgaten 207 ^^^^^^^^^^^^^^^^^^^^
- N-5004 Bergen, Norway
-
- or
-
- Trader's Mascot AS bjorn@traders.no
- Postboks 3098 Sentrum ^^^^^^^^^^^^^^^^
- N-6001 AALESUND, Norway
- _____________________________________________________________________________
- _______________________________END_OF_README_________________________________
-