Visual Basic 2. 01. Lesson 3- Working with Control Properties. You can set the properties of the controls in the properties window at design time or at runtime. Figure 3. 1 is a typical properties window for a form in Visual Basic 2. IDE. To change the form’s title to any name that you like, simple click in the box on the right of the Text property and type in the new name. In this example, the title is Addition Calculator. Notice that the title will appear on top of the window. In the properties window, the item appears at the top part is the object currently selected (in Figure 3. Form. 1). At the bottom part, the items listed in the left column represent the names of various properties associated with the selected object while the items listed in the right column represent the states of the properties. Properties can be set by highlighting the items in the right column then change them by typing or selecting the options available. You may also alter other properties of the form such as font, location, size, foreground color, background color ,Maximize. Box, Minimize. Box and etc. You can also change the properties of the object at runtime to give special effects such as change of color, shape, animation effect and so on. For example the following code will change the form color to yellow every time the form is loaded. Visual Basic 2. 01. RGB(Red, Green, Blue) to determine the colors. The RGB code for yellow is 2. Me in the code refer to the current form and Backcolor is the property of the form’s background color. The formula to assign the RGB color to the form is Color. Form. Arbg(RGB code). You can always experiment with other combinations, but remember the maximum number for each color is 2. The following is another program that allows the user to enter the RGB codes into three different text boxes and when he or she clicks the display color button, the background color of the form will change according to the RGB codes. So, this program allows users to change the color properties of the form at run time. The code. Private Sub Button. This article lists all the intrinsic and ActiveX controls shipped in Visual Basic. The list includes the ActiveX component file name, display name, version number, date, size. A programmer can create an application using the components provided by the Visual Basic program itself. A free, downloadable Control Creation Edition was also released for creation of ActiveX controls. H Programming for the Windows User Interface is extremely complicated. Drawing The Program Select A Control From Here (Click on the appropriate button) Then Draw the control on the form. Project : Description: Authors: vbHelloWorld: A simple hello world program that illustrates a basic VB program as well as the command button and timer control. Saul Greenberg: FirstProject: We use this nonsense program as a. Visual Basic/Control Structures and Logical Expressions. This lesson will cover the most fundamental elements of every Visual Basic program--control structures and logical expressions. Figure 2 shows how, with the IVI architecture, you make calls from your Visual Basic program to the class drivers, which in turn communicate through IVI instrument-specific drivers to the instruments. Serial Port Using Visual Basic.NET and Windows Introduction The serial (COM) port is one of the simplest ways to communicate between a PC and a. Program Control There are two ways to control program flow. Decision control structures and Loop control structures. Decision Control Structures VB procedures can test conditions and then, depending on the results of that test.
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January 2017
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