Function ncmenu_mouse_selected 

pub unsafe extern "C" fn ncmenu_mouse_selected(
    n: *const ncmenu,
    click: *const ncinput,
    ni: *mut ncinput,
) -> *const c_char

Return the item description corresponding to the mouse click ‘click’. The item must be on an actively unrolled section, and the click must be in the area of a valid item. If ‘ni’ is not NULL, and the selected item has a shortcut, ‘ni’ will be filled in with the shortcut.