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   ► KBTo/From GuidesVB Classic  Print This     

Constructor (VB Classic and C++/CLI Cross Reference Guide)

By Mike Prestwood

VB Classic versus C++/CLI: A side by side comparison between VB Classic and C++/CLI.

 
OOP Details
 

More object oriented (OO) stuff.

Constructor

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General Info: Class Constructor

Constructors are called when you instantiate an object from a class. This is where you can initialize variables and put code you wish executed each time the class is created. When you initially set the member fields and properties of an object, you are initializing the state of the object. The state of an object is the values of all it's member fields and properties at a given time.

Languages Focus

What is the syntax? Can you overload constructors? Is a special method name reserved for constructors?

VB Classic:  "Constructors" Class_Initialize

When an object instance is created from a class, VB6 calls a special parameter-less sub named Class_Initialize. Since you cannot specify parameters for this sub, you also cannot overload it.

When a class is destroyed, VB6 calls a special sub called Class_Terminate.

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