Then you can do things that plain Visual Basic cannot.
VISUAL BASIC BOOK WINDOWS
Subclassing Visual Basic hides the details of all the messages that Windows sends to an application but you can get at them if you really need to. Windows API APIs, short for "application programming interface", allows you to access a wide array of functions and methods exposed by the operating system or other applications (DLLs), performing operations not normally implemented by the standard virtual machine that Visual Basic provides. Databases Visual Basic can connect to databases in many different ways. Windows Dialogs Windows dialogs are useful when one requires standard interfaces, including opening files, saving files, choosing color and/or font, specifying printer settings. Simple Graphics Visual Basic can easily be used to draw simple graphics such as line drawings and diagrams. User Interfaces Visual Basic supports creation of Graphical User Interfaces, which generally consists of one or more Forms that contain text boxes, labels, buttons, picture boxes, etc. Date and Time Dates and time need to be formatted, added, etc. Visual Basic allows us to perform most operations available in Windows Explorer and DOS command line. Files While programming, you may want to at some point save data so they may be accessible for further use. Error Handling Errors can be caught, handled and raised. Procedures and Functions A function is a calling procedure or small part of a program that performs some specific task and returns a result for example the cosine function. Data Types A datatype is a specification of the kind of information that a variable can hold, for example, a number or a piece of text. Arrays Arrays are used to group data items of the same type together, to make it easier to search and sort through this data. Regular Expressions Complex string matching and manipulation can be achieved using a fairly sophisticated technique of regular expressions.
Built In String Functions Strings can be manipulated using simple string functions. They are very useful for communicating with human beings and for transferring data between programs and machines in text files and web pages. Strings Strings hold printable characters.
VISUAL BASIC BOOK CODE
Loops Loops are control structures used to repeat a given section of code a certain number of times or until a particular condition is met. The flow of execution follows a particular branch like a fork in the road. Branching Branching occurs when the program makes a decision. Simple Arithmetic Introduction to calculating and operands with Visual Basic. Getting Started VB6 IDE (Integrated Development Environment) is highly useful for developing GUI (Graphical User Interface) applications. History A timeline of Visual Basic's history. Introduction This book's sole purpose is to help people better understand Visual Basic. A printable version of Visual Basic is available.