{
AbstractButton cb = (AbstractButton) peer.getComponentObject();
ButtonGroup grp = ((DefaultButtonModel) cb.getModel()).getGroup();
if (grp != null)
{
BridgeButtonGroupPeer grpPeer = (BridgeButtonGroupPeer) peer.getContext().getPeer(grp);
if (grpPeer == null)
{
grpPeer = (BridgeButtonGroupPeer) peer.getBridgeToolkit().createButtonGroupPeer(grp);
}
return grpPeer.getId();
} else
{
return "";
}
}