[Lazarus] Carbon: PostMessage/SendMessage

[EarMaster - Bent Olsen]

Hi,

bugreport http://bugs.freepascal.org/view.php?id=12403

In radiogroup.inc there is a method called procedure 
TCustomRadioGroup.UpdateItems;

inside is created strange FHiddenButton of class TRadioButton.
It of course adds to the list of controls of TRadioGroup even if it's 
hidden for use usage. I don't know what it is, presumably some hack.

Please explain what is the purpose of this hidden Tradiobutton ?



Regards
Boguslaw