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   ► KBTo/From GuidesDelphi Prism  Print This     

Member Event (Delphi Prism and PHP Cross Reference Guide)

By Mike Prestwood

Delphi Prism versus PHP: A side by side comparison between Delphi Prism and PHP.

 
OOP Basics
 

Some languages support object-based concepts such as Paradox, Access, and VB Classic. Other languages have OO extensions and fully support object orientation in a hybrid fashion (such as C++ and Dephi for Win32). Finally, some lanages such as C#, VB.Net, Prism, and Java are entirely written in OO. Meaning, every line of code written must occur within a class).

Member Event

[Other Languages] 

A custom event added by a programmer to a class. Custom created events need to be processed, usually by an event dispatcher within a framework.

Delphi Prism:  "Member Events" event

Like all .Net languages, Prism events are a separate type of class member. You define a member event by using the event keyword. Events depend on Delegates to define the signature (the type) of the event they represent and they maintain a list of multiple subscribers - unlike in Delphi for Win32, where each event can only have one handler

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