Besides a Project Explorer window, each form (or control) contains a Properties window. As stated in
Running a Visual Basic Program, a property is a named attribute of an object. Properties are used to change the appearance or behavior of objects.
Figure 2.6...
The concept of focus is important in Visual Basic. The object that is selected (such as a form, control, or menu bar selection) is said to have focus. In order for Visual Basic to know what file to save, it is necessary to click the object to give it focus, making...