First Lecture: An Introduction

First Lecture: An Introduction
Visual Basic implements graphical user interface that allows the use of graphics for different applications. It provides visual interactive windows with user , like Dialogue box for(color, font, ….), input box , output box. Also it is able to create menu to simplify user application.
To run this language follow this path:
Start>programs>Microsoft visual studio>Microsoft visual basic .
The visual basic provides an organized environment that allows user to use different computer units like mouse , keyboard , printer and works independently of the designed application (for example it prints independent of printer type).
The reasons for implementing Visual Basic program are:
1- It uses Integrated Development Environment (IDE) which is easier for the user to minimize code writing.
2- All visual programs follow the same concepts , therefore the user will become more familiar with visual approach for other visual language.
3- The core of the visual basic program is the powerful Form Designer that makes form design fast and easy. The form designer creates and modifies visual forms.
Forms: are objects that have their properties , events and methods. Forms provide a viewing interface with a set of objects that can respond to user (or system) events of user application tasks.
4- The Designer of the visual basic provides different types:
A) Forms for window style applications. These forms are either based on custom templates or designed by user by adding and modifying various types of objects on the forms. These form windows can be moved around within the form. They can be single forms or multiple as a form set that consist of one or more forms that can be manipulated as a unit.
B) DHTML page for Internet Explorer .
5- It uses many tools and boxes as standard tools , and common dialog ,OLE (object linking embedding ), and other.
6- It provides input box and output box as an interactive windows with user.
7- It uses API. The API are windows-routines added to visual basic code by copy and paste process.
8- It is able to connect to Internet and to call Explorer.