An application sends a CB_GETCOUNT message to retrieve the number of items in the list box of a combo box.
CB_GETCOUNT wParam = 0; // not used; must be zero lParam = 0; // not used; must be zero
This message has no parameters.
The return value is the number of items in the list box. If an error occurs, it is CB_ERR.
The index is zero-based, so the returned count is one greater than the index value of the last item.
file: /Techref/os/win/api/win32/mess/src/msg01_14.htm, 1KB, , updated: 2000/4/7 11:19, local time: 2024/11/28 10:25,
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