[Lazarus] Property TComponent.Tag change
Luiz Americo Pereira Camara
luizmed at oi.com.br
Tue Nov 23 21:42:05 CET 2010
Michael Van Canneyt escreveu:
> To remain compatible with the upcoming Delphi 64-bit release, I've
> the 'Tag' property type from Integer -> PtrInt.
Do you already has the info that Delphi will do this change?
> The practical upshot from this is that you can store a pointer in it
> on all platforms.
> (a widespread abuse of the Tag property).
> This potentially breaks some existing code if you rely on Tag having a
> size of 4 bytes.
> If you do not rely on this, it should not break any code. If it does,
> I'd be interested
> in hearing about it so we can provide workarounds on the website.
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