In Visual Basic 6, a windows application may have more than one window. Most of the Windows applications contain several windows. You can make a multiple windows software by adding some forms to your project as because forms are nothing but the windows of the final product.
Most commercial software products have popup menus (also known as context menus) as they can make the application more user-friendly and powerful.
Menus are one of the most important features of a software product. Every standard software must have menus. You generally see a menu on top of a software interface.
A function procedure in Visual Basic 6 has a scope, a unique name, parameter list and return value. You can pass any datatype to a procedure e.g Integer, Boolean, Long, Byte, Single, Double, Currency, Date, String and Variant.
Before proceeding with this lesson, be sure to read the section covering Variable Scopes. As we have discussed in the lesson about variable scoping, that procedures are of three types : Sub Procedures are of two types : Every procedure has a unique name, a scope and a list of arguments. The function procedure, in addition, has a return… Read More »
The user defined type in Visual Basic 6 is a compound data structure. It holds several variables of different data types. After defining a UDT, you can assign values to the member variables of the UDT.
Visual Basic 6 is rich in data types. So you should know the usage of all the data types to make a powerful application. Integer values Among the data types for storing integer values, Integer is the most used data type for its efficiency. But sometimes you may use the Long data type instead of Integer especially when… Read More »
Collections are objects in Visual Basic that are used to store a group of data values. Collections are similar to array. But there are some special features that differentiate the collections from arrays.
Up to this point, we have discussed array of variables. Similarly you can also have an array of controls by grouping a set of controls together. The controls must be of the same type like all TextBoxes or all CommandButtons.
In case of a fixed size array, we have seen that the size of the array is fixed or unchanged, but there may be some situations where you may want to change the array size. A dynamic array can be resized at run time whenever you want. Declaring dynamic arrays Declare the array with empty dimension list. For… Read More »