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Retrieves the index of the item that has the focus in a multiple-selection list box. The item may or may not be selected.
Parameters
-
wParam
-
Not used; must be zero.
-
lParam
-
Not used; must be zero.
Return value
The return value is the zero-based index of the focused list box item, or 0 if no item has the focus.
Remarks
This message can also be used to get the index of the item that is currently selected in a single-selection list box.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|