A List function that replaces the specified elements in the list
#include <Xm/List.h> void XmListReplaceItemsPos Widget widgetXmString *new_itemsint item_countint position
XmListReplaceItemsPos replaces the specified number of items of the List with new items, starting at the specified position in the List. When the items are inserted into the list, they are compared with the current XmNselectedItems list. If any of the new items matches an item on the selected list, it appears selected.
Beginning with the item specified in position, item_count items in the list are replaced with the corresponding elements from new_items. That is, the item at position is replaced with the first element of new_items; the item after position is replaced with the second element of new_items; and so on, until item_count is reached.
For a complete definition of List and its associated resources, see XmList (3).