Dialog ListBox change

[pedrotairum]

Isn't this supposed to give me the selection name on the list?

Function Dialog3

Code:

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,case LBN_SELCHANGE<<16|1
,_i=LB_SelectedItem(lParam)
,_s=LB_GETCURSEL
,out _s

I also tried:

LB_GETITEMDATA ; LB_GETSELITEMS ; LB_GETTEXT ; LB_GETITEMDATA

It always return a number, and the thing is, the number is always the same, it changes with the function but not with the item index on the list
Any help would be appreciated. Thanks!!