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When I want to create a TComponent descendent using the Create method in delphi we must pass a parameter :

className.Create(AOwner)

where AOwner is of type TComponent

From what i know it accepts any one of three parameter(in default create cases) 

Nil,Self, application

I did't quite understood when to use which.

Can someone please elaborate on same.

J...
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Arpit Mishra
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  • It depends on the class. Which class are you asking about. They can all be different. Are you specifically talking about descendents of `TComponent`? – J... Jan 28 '20 at 18:44
  • Thanks for the response. Yes TComponent specifically – Arpit Mishra Jan 28 '20 at 18:45
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    Also depends on context.. Did you read the [docs](http://docwiki.embarcadero.com/Libraries/en/System.Classes.TComponent.Owner) already? Also [this](http://docwiki.embarcadero.com/Libraries/Rio/en/System.Classes.TComponent.Create). – Sertac Akyuz Jan 28 '20 at 18:53
  • Also you can search for and find similar questions, like [this](https://stackoverflow.com/questions/474448/why-do-some-delphi-components-require-aowner-tcomponent-to-construct-them) one. – Sertac Akyuz Jan 28 '20 at 18:55
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    Or, my standard advice: by reading a good book about Delphi programming, you learn how the language works and you get the big picture combined with the subtle details. It is much harder to truly learn a new language by simply googling one particular issue at a time. Much harder. – Andreas Rejbrand Jan 28 '20 at 22:20

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