This message is sent by an application to set a 32-bit value associated with the specified item in a list box.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
LB_SETITEMDATA wParam = (WPARAM) index;
lParam = (LPARAM) dwData;
Parameters
index
Zero-based index of the 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.
dwData
Specifies the 32-bit value to be associated with the item.
Return Values
LB_ERR indicates that an error has occurred.
Remarks
If the item is in an owner-drawn list box created without the LBS_HASSTRINGS style, this message replaces the 32-bit value contained in the lParam parameter of the LB_ADDSTRING or LB_INSERTSTRING message that added the item to the list box.
See Also