Looks up the given
item in the list store by looping over the items until
the first occurrence of
item was not found, then
not be set, and this method will return
If you need to compare the two items with a custom comparison function, use
g_list_store_find_with_equal_func() with a custom
Available since: 2.64
The data is owned by the caller of the method.
The first position of
item, if it was found.
The argument will be set by the function. The argument can be