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LB_SETITEMDATA message

Sets a value associated with the specified item in a list box.

Parameters

wParam

Specifies the zero-based index of the item. If this value is -1, the lParam value applies to all items in the list box.

Windows 95/Windows 98/Windows Millennium Edition (Windows Me): 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.

lParam

Specifies the value to be associated with the item.

Return value

If an error occurs, the return value is LB_ERR.

Remarks

If the item is in an owner-drawn list box created without the LBS_HASSTRINGS style, this message replaces the value contained in the lParam parameter of the LB_ADDSTRING or LB_INSERTSTRING message that added the item to the list box.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winuser.h (include Windows.h)

See also

Reference
LB_ADDSTRING
LB_GETITEMDATA
LB_INSERTSTRING

 

 

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