The DELETEITEMSTRUCT structure describes a deleted list box or combo box item. The lParam parameter of a WM_DELETEITEM message contains a pointer to this structure. When an item is removed from a list box or combo box or when a list box or combo box is destroyed, Windows sends the WM_DELETEITEM message to the owner for each deleted item.
Windows NT: Windows sends a WM_DELETEITEM message only for items deleted from an owner-drawn list box (with the LBS_OWNERDRAWFIXED or LBS_OWNERDRAWVARIABLE style) or owner-drawn combo box (with the CBS_OWNERDRAWFIXED or CBS_OWNERDRAWVARIABLE style).
Windows 95: Windows sends the WM_DELETEITEM message for any deleted list box or combo box item with nonzero item data.
typedef struct tagDELETEITEMSTRUCT { // ditms UINT CtlType; UINT CtlID; UINT itemID; HWND hwndItem; UINT itemData; } DELETEITEMSTRUCT;
Value |
Meaning |
ODT_LISTBOX |
A list box. |
ODT_COMBOBOX |
A combo box. |
file: /Techref/os/win/api/win32/struc/src/str03_12.htm, 2KB, , updated: 2000/4/7 11:20, local time: 2024/11/8 03:36,
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