[fpc-devel] 0010465: CsSubComponent component properties not streamed

Vincent Snijders vsnijders at quicknet.nl
Mon Dec 24 09:29:24 CET 2007

Martin Schreiber schreef:
> On Sunday 23 December 2007 22.08:34 Michael Van Canneyt wrote:
>> On Sun, 23 Dec 2007, Florian Klaempfl wrote:
>>> Martin Schreiber schrieb:
>>>> Hi,
>>>> Michael Van Canneyt marked my bugreport 10465 with "won't fix", I would
>>>> like to discuss the issue in a broader forum.
>>>> With fixes_2_2 rev. 9006 FPC does not stream published component
>>>> properties where the component has CsSubComponent set if the property
>>>> component is not owned by the streamed component.
>>>> Delphi streams CsSubComponent properties independent of ownership.
>>> What was the reason for the change?
>> The reason is that Delphi-compatible cannot handle references to
>> subcomponents. This 'bug' was fixed during systems by me and Mattias
>> Gaertner.
>> In particular:
>> Consider the ActiveControl property of TForm.
>> The Lazarus TButtonPanel component has buttons as subcomponents (OKButton,
>> CancelButton etc).
> This is a misuse of csSubComponent.

What is the misuse? That you may not set a reference to a csSubcomponent?


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