LB_GETITEMDATA message

Gets the application-defined value associated with the specified list box item.

Parameters

wParam

The index of the item.

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

This parameter is not used.

Return value

The return value is the value associated with the item, or LB_ERR if an error occurs. If the item is in an owner-drawn list box and was created without the LBS_HASSTRINGS style, this value was in the lParam parameter of the LB_ADDSTRING or LB_INSERTSTRING message that added the item to the list box. Otherwise, it is the value in the lParam of the LB_SETITEMDATA message.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Winuser.h (include Windows.h)

See also

Reference
LB_ADDSTRING
LB_INSERTSTRING
LB_SETITEMDATA

 

 

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