LB_SELITEMRANGE
wParam = (WPARAM) (BOOL) fSelect; /* selection flag */
lParam = MAKELPARAM(wFirst, wLast); /* first and last items */
An application sends an LB_SELITEMRANGE message to select one or more consecutive items in a multiple-selection list box.
fSelect
Value of wParam. Specifies how to set the selection. If the fSelect parameter is nonzero, the string is selected and highlighted; if fSelect is zero, the highlight is removed and the string is no longer selected.
wFirst
Value of the low-order word of lParam. Specifies the zero-based index of the first item to set.
wLast
Value of the high-order word of lParam. Specifies the zero-based index of the last item to set.
The return value is LB_ERR if an error occurs.
This message should be used only with multiple-selection list boxes.