Chapter 1Chapter 1Introduction to Introduction to Visual BasicVisual Basic

Programming and Applications

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Joshi R.G. Dept. of Computer Sci. YMA

ObjectivesObjectivesMachine language vs.. High-level

languageProcedure-oriented, object-oriented,

and event-driven languagesBackground of Visual BasicVB Integrated Development

EnvironmentOnline documentation and Help

features

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Application ProgramsApplication Programs

Program - detailed set of instructions for a computer to execute

Application programs (applications or apps) - self-contained collection of programs that perform a task for the end user

Programming language - formal language used to give instructions to computers

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History of Programming History of Programming LanguagesLanguages

Machine languageProcedure-oriented languagesObject-oriented languagesEvent-driven languagesNatural languages

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History of Programming History of Programming LanguagesLanguages

Machine Language ◦ different for each computer processor

Procedure-Oriented Languages◦ FORTRAN◦ COBOL◦ Pascal◦ C◦ Ada

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History of Programming History of Programming LanguagesLanguages

Object-oriented languages◦Smalltalk◦C++◦Ada 95

Event-driven languages◦Visual Basic◦most Visual languages

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History of Programming History of Programming LanguagesLanguages

Natural languages◦computer will accept a user’s native

or natural language, such as English◦Researchers continue to work in this

area

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Background of Visual Background of Visual BasicBasicBASIC

◦Beginner’s All-purpose Symbolic Instruction Code

◦By John Kemeny and Thomas Kurtz ◦Designed to teach programming to

beginners◦BASIC language interpreter, one of

Microsoft’s first products

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Background of Visual Background of Visual BasicBasicBASIC

◦ Included with DOS◦ QBASIC - included with DOS Version 5 -

subset of BASIC

Visual Basic◦ 1992 - Visual Basic 1 for Windows 3◦ Visual Basic 4 - for Windows 95◦ Visual Basic 5 - for Office 97◦ Visual Basic 6 - for Windows 98 & Office

2000

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Visual Basic EditionsVisual Basic EditionsLearning EditionProfessional EditionEnterprise EditionIncluded in Visual Studio suite

(analogy Office for programmers)

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Visual Basic EditionsVisual Basic EditionsOther Visual Basic packaging

options◦VBA (Visual Basic for Applications)◦Windows CE Toolkit for Visual Basic◦Visual Basic Scripting Edition◦Control Creation Edition

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Toolbox

Form Designer Window

Code Editor Window

Project Explorer

Properties window

Form Layout Window

Visual Basic 6 Interactive Development Environment

Elements of the Integrated Elements of the Integrated Development EnvironmentDevelopment Environment

Application iconApplication nameContext menusControlsCurrent projectDesign view

modeTitle bar

Major windows◦ Form Designer◦ Form Layout◦ Toolbox◦ Project Explorer◦ Object Browser◦ Properties◦ Code Editor◦ Immediate, Locals, Watch

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Introduction to Visual Introduction to Visual BasicBasic

Hands-On Exercise 1 ◦Start Microsoft Visual Basic 6.0◦Open the Welcome Project◦Open the Welcome Form◦Run the Welcome Project◦End the Welcome Project◦Exit Visual Basic

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Get Help When You Need Get Help When You Need ItItMSDN LibraryMicrosoft on the WebLearning Edition of Visual Basic

6.0◦Visual Basic 6.0 in Action book◦Learn Visual Basic Now multimedia

tutorial

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MSDN LibraryMSDN Library

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Topic PaneNavigation Pane

MSDN LibraryMSDN Library

Visual Basic Documentation◦Documentation Map◦What’s New◦Programmer’s Guide◦Samples◦Reference Guidebooks◦Component Tools Guide◦Data Access Guide

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Get Help from the CDGet Help from the CD

Hands-On Exercise 2◦Open the Calc Sample Application◦Run the Calc Sample Application◦Get Help from the MSDN Library◦Add a Topic to the Favorites List◦Search for a Definition◦Exit Help and Visual Basic

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Help from the WebHelp from the WebPull down Help menuSelect Help from the Web

◦or www.microsoft.com/vbasic

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Get Help from the WebGet Help from the Web

Hands-On Exercise 3◦Use the Free Stuff Page to Update VB◦Install the Update (optional)◦Product News◦Frequently Asked Questions◦Online Support

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Use the Right Tool Use the Right Tool for the Jobfor the Job

Microsoft Office Suite◦ Word - word processing◦ Excel - spreadsheet◦ PowerPoint - presentation◦ Access - database

OLE = Object Linking and Embedding

Use Visual Basic to create a specialized, customized application

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Summary ...Summary ...Event-driven languages is a

major improvement in programming languages

Editions include Learning Edition, Professional Edition, and Enterprise Edition

CD-ROM includes the MSDN Library, and many sample programs

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SummarySummaryIntegrated Development

Environment includes ◦ Form Designer, Form Layout◦ Code Edition, Project Explorer◦ Properties and Object Browser

Choose the right tool for the jobVisual Basic is the glue that binds

Windows objects together

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Practice with Visual BasicPractice with Visual Basic

1. Automated Teller Machine2. Personal News Service3. Getting Assistance While You

Work4. Pricing Information

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Case StudiesCase StudiesI Wish I CouldVisual Basic Help on the WebQuick Reference ManualPlanning for Disaster

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Thank Thank

YouYou

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