DEPARTMENT OF COMPUTER SCIENCE Introduction to Visual Basic BCA 3 RD YR PRESENTED BY HASHIR UN NABI Dated:01/07/2015 1

2 Objectives  Machine language vs.. High-level language  Procedure-oriented, object-oriented, and event-driven languages  Background of Visual Basic  VB Integrated Development Environment  Online documentation and Help features

3 Application 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

4 History of Programming Languages  Machine language  Procedure-oriented languages  Object-oriented languages  Event-driven languages  Natural languages

5 History of Programming Languages  Machine Language different for each computer processor  Procedure-Oriented Languages FORTRAN COBOL Pascal C Ada

6 History of Programming Languages  Object-oriented languages Smalltalk C++ Ada 95  Event-driven languages Visual Basic most Visual languages

7 History of Programming Languages  Natural languages computer will accept a user’s native or natural language, such as English Researchers continue to work in this area

8 Background of Visual Basic  BASIC 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

9 Background of Visual Basic  BASIC Included with DOS QBASIC - included with DOS Version 5 - subset of BASIC  Visual Basic 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

10 Visual Basic Editions  Learning Edition  Professional Edition  Enterprise Edition  Included in Visual Studio suite (analogy Office for programmers)

11 Visual Basic Editions  Other Visual Basic packaging options VBA (Visual Basic for Applications) Windows CE Toolkit for Visual Basic Visual Basic Scripting Edition Control Creation Edition

Exploring MS Visual Basic 6 Copyright 1999 Prentice-Hall, Inc.12 Toolbox Form Designer Window Code Editor Window Project Explorer Properties window Form Layout Window Visual Basic 6 Interactive Development Environment

13 Elements of the Integrated Development Environment  Application icon  Application name  Context menus  Controls  Current project  Design view mode  Title bar  Major windows Form Designer Form Layout Toolbox Project Explorer Object Browser Properties Code Editor Immediate, Locals, Watch

14 Introduction to Visual Basic 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

15 Get Help When You Need It  MSDN Library  Microsoft on the Web  Learning Edition of Visual Basic 6.0 Visual Basic 6.0 in Action book Learn Visual Basic Now multimedia tutorial

16 MSDN Library Topic Pane Navigation Pane

17 MSDN Library  Visual Basic Documentation Documentation Map What’s New Programmer’s Guide Samples Reference Guidebooks Component Tools Guide Data Access Guide

18 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

19 Summary  Integrated Development Environment includes Form Designer, Form Layout Code Edition, Project Explorer Properties and Object Browser  Choose the right tool for the job  Visual Basic is the glue that binds Windows objects together

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