[Lazarus] LCL-fpGUI widgetset and COM interfaces

[Graeme Geldenhuys]

Hi,

While looking at the LCL-fpGUI code for a reply to a previous message, I
noticed something...

Is it really necessary for LCL-fpGUI to use COM-style interfaces? After
all, TFGGUIPrivate overrides the COM memory management anyway. So
wouldn't it be better and probably more efficient to simply use
CORBA-style interfaces instead?

I'm not well versed in the LCL-fpGUI widgetset code, so if there really
is an advantage to using COM-style interface in this widgetset, would
somebody so kind as to explain those advantages. Many thanks.


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⋮
type

  IContainer = interface(IInterface)
    procedure AddChild(AWidget: TfpgWidget);
    procedure RemoveChild(AWidget: TfpgWidget);
  end;


  TFPGUIPrivate = class(TInterfacedObject)
    function _AddRef : longint;stdcall;
    function _Release : longint;stdcall;
  end;

⋮
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Regards,
  - Graeme -

-- 
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/