INPUTS

pos
- Number of the entry or
MUIV_List_Select_Active for the active entry.
MUIV_List_Select_All for all entries.

seltype
- Value:
MUIV_List_Select_Off unselect entry.
MUIV_List_Select_On select entry.
MUIV_List_Select_Toggle toggle entry.
MUIV_List_Select_Ask just ask about the state.

state
- Pointer to a longword. If not NULL, this will be filled with the current selection state.