TObject and TClass

The TObject class, declared in the System unit, is the ultimate ancestor of all other classes. TObject defines only a handful of methods, including a basic constructor and destructor. In addition to TObject, the System unit declares the class reference type TClass:

TClass = class of TObject;

If the declaration of a class type doesn't specify an ancestor, the class inherits directly from TObject. Thus type TMyClass = class end;

is equivalent to type TMyClass = class(TObject) end;

The latter form is recommended for readability.

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Project Management Made Easy

Project Management Made Easy

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