Change item height in CListBox / CListCtrl

Hello,

I need a ownerdraw CListBox where I can change the item height during working with the list.
The msdn says that I can specify the height in OnMeasureItem when the listbox will be created (ownerdrawfixed) or when an item will be inserted (ownerdrawvariable).

Any ideas how to change the height e.g. when I click a button?

I made also some tests with CListCtrl. There I can change the height.
But there is only one height for all items.
Any ideas how to set individual heights for the items?

thx
Ralf