A List function that replaces items in a list based on position
#include <Xm/List.h> void XmListReplacePositions Widget widgetint *position_listXmString *item_listint item_count;
XmListReplacePositions replaces noncontiguous items in a list. The item at each position specified in position_list is replaced with the corresponding entry in item_list. When the items are inserted into the list, they are compared with the current XmNselectedItems list. Any of the new items that match items on the selected list appear selected. A warning message is displayed if a specified position is invalid; that is, the value is 0 (zero), a negative integer, or a number greater than the number of items in the list.
For a complete definition of List and its associated resources, see XmList (3).