The DELETEITEMSTRUCT structure describes a deleted owner-draw list-box or combo-box item. When an item is removed from the list box or combo box, or when the list box or combo box is destroyed, Windows sends the WM_DELETEITEM message to the owner for each deleted item; the lParam parameter of the message contains a pointer to this structure.
typedef struct tagDELETEITEMSTRUCT
{
WORD CtlType
WORD CtlID;
WORD itemID;
HWND hwndItem;
DWORD itemData;
} DELETEITEMSTRUCT;
The DELETEITEMSTRUCT structure has the following fields:
| Field | Description | |
| CtlType | Is ODT_LISTBOX (which specifies an owner-draw list box) or ODT_COMBOBOX (which specifies an owner-draw combo box). | |
| CtlID | Is the control ID for the list box or combo box. | |
| itemID | Is the index of the item in the list box or combo box being removed. | |
| hwndItem | Is the window handle of the control. | |
| itemData | Contains the value passed to the control in the lParam parameter of the LB_INSERTSTRING, LB_ADDSTRING, CB_INSERTSTRING, or CB_ADDSTRING message when the item was added to the list box. |