find_with_equal_func

Looks up the given item in the list store by looping over the items and comparing them with equal_func until the first occurrence of item which matches.

If item was not found, then position will not be set, and this method will return false.

item is always passed as second parameter to equal_func.

Since GLib 2.76 it is possible to pass `NULL` for item.

Parameters:

this	a ListStore
item	an item
equal_func	A custom equality check function
position	the first position of item, if it was found.

Returns:

Whether this contains item. If it was found, position will be set to the position where item occurred for the first time.