Transcription of Introduction to Visual Basic - Jones & Bartlett Learning
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Introduction to Visual Basic - Jones & Bartlett Learning
Elements of a Visual Basic Getting Started in Visual Adding an Event Adding Adding Additional Event Focus on Program Design and Implementation:Creating a Main Knowing About: The Help Common Programming Errors and Chapter ReviewIntroduction to VisualBasic . 11/10/04 12:44 PM Page 4546|Chapter 2: Introduction to Visual Basic .NETIn this chapter we begin Learning about the fundamentals of programming and VisualBasic .NET. First we examine the two elements that are required by every practicalVisual Basic program: the screens and instructions seen by the user, and the behind thescenes processing that is done by the program. We then present the Basic design win-dows that you must be familiar with to produce such programs. Finally, we show youhow to use these design windows to create the Visual user interface, or GUI, and thenadd processing of a Visual Basic ApplicationVisual Basic was initially introduced in 1991 as the first programming language thatdirectly supported programmable graphical user interfaces using language-suppliedobjects.
From a programmer’s perspective the GUI is constructed by placing a set of visual objects on a blank window, or form, when the program is being developed. For exam-ple, consider Figure 2–1, which shows how a particular application would look to the user. From a programmer’s viewpoint, the application shown in Figure 2–1 is based on
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