An application sends an LB_GETCOUNT message to retrieve the number of items in a list box.
LB_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, or LB_ERR if an error occurs.
The returned count is one greater than the index value of the last item (the index is zero-based).
file: /Techref/os/win/api/win32/mess/src/msg10_3.htm, 1KB, , updated: 2000/4/7 11:20, local time: 2024/11/27 20:08,
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