man XmMultiListSelectItems (3): A MultiList function that selects items in the list by matching column entries

SYNOPSIS

#include <Xm/MultiList.h>
void XmMultiListSelectItems(
Widget widget,
XmString item,
int column,
Boolean notify);

XmMultiListSelectItems highlights rows in the list where column number column matches item.

widget: Specifies the ID of the MultiList widget from whose list an item is selected.
item: Specifies XmString to use as selection key.
column: Specifies a column number (starting from 0) to match, or XmANY_COLUMN for looking for any column.
notify: Specifies a Boolean value that when TRUE invokes the selection callback for the current mode. From an application interface view, calling this function with notify True is indistinguishable from a user-initiated selection action. When notify is FALSE, no callbacks are called.

For a complete definition of MultiList and its associated resources, see XmMultiList(3).