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This message is sent by an application to add a string to a list box. If the list box does not have the LBS_SORT style, the string is added to the end of the list. Otherwise, the string is inserted into the list and the list is sorted.
LB_ADDSTRINGwParam = 0;lParam = (LPARAM)(LPCTSTR)lpsz;
Parameters
wParam
Not used.lpsz
Long pointer to the null-terminated string to be added.If you create the list box with an owner-drawn style, but without the LBS_HASSTRINGS style, the value of the lpsz parameter is stored as item data instead of the string it would otherwise point to. You can send the LB_GETITEMDATA and LB_SETITEMDATA messages to retrieve or modify the item data.
Return Values
The zero-based index of the string in the list box indicates success. LB_ERR indicates that an error has occurred. LB_ERRSPACE indicates that there is insufficient space to store the new string.
Remarks
Windows CE does not support owner draw list boxes.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.
See Also
LB_DELETESTRING | LB_GETITEMDATA | LB_INSERTSTRING | LB_SELECTSTRING | LB_SETITEMDATA | List Boxes Messages
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