An application sends an LB_SELITEMRANGEEX message to select one or more consecutive items in a multiple-selection list box.
LB_SELITEMRANGEEX
wParam = (WPARAM) wFirst; // first item
lParam = (LPARAM) wLast); // last item
Windows 95 and Windows 98: The wParam parameter is limited to 16-bit values. This means list boxes cannot contain more than 32,767 items. Although the number of items is restricted, the total size in bytes of the items in a list box is limited only by available memory.
If an error occurs, the return value is LB_ERR.
If the wFirst parameter is less than the wLast parameter, the specified range of items is selected. If wFirst is greater than wLast, the selection is removed from the specified range of items.
Use this message only with multiple-selection list boxes.
This message can select a range only within the first 65,536 items.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.
List Boxes Overview, List Box Messages, LB_SELITEMRANGE, LB_SETSEL