A File Manager extension sends a FM_GETFOCUS message to retrieve the type of the File Manager window that has the input focus.
wParam
Not used.
lParam
Not used.
The return value indicates the type of File Manager window that has input focus. It can have one of the following values:
| Value | Meaning |
| FMFOCUS_DIR | Directory portion of a directory window |
| FMFOCUS_TREE | Tree portion of a directory window |
| FMFOCUS_DRIVES | Drive bar of a directory window |
| FMFOCUS_SEARCH | Search Results window |