This message is sent by an application to set the focus rectangle to the item at the specified index in a multiple-selection list box. If the item is not visible, it is scrolled into view.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
LB_SETCARETINDEX wParam = (WPARAM) index;
lParam = MAKELPARAM(fScroll,0);
Parameters
index
Zero-based index of the list box item that is to receive the focus rectangle.
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.
fScroll
Boolean that is set to FALSE if the item is scrolled until it is fully visible, or to TRUE if the item is scrolled until it is at least partially visible.
Return Values
LB_ERR indicates that an error has occurred.
See Also