Returns the values associated with @key under @group_name as
integers.
If @key cannot be found then %NULL is returned and @error is set to
#G_KEY_FILE_ERROR_KEY_NOT_FOUND. Likewise, if the values associated
with @key cannot be interpreted as integers then %NULL is returned
and @error is set to #G_KEY_FILE_ERROR_INVALID_VALUE.
Return: the values associated with the key as a list of integers, or %NULL if
the key was not found or could not be parsed. The returned list of
integers should be freed with g_free() when no longer needed.
Returns the values associated with @key under @group_name as integers.
If @key cannot be found then %NULL is returned and @error is set to #G_KEY_FILE_ERROR_KEY_NOT_FOUND. Likewise, if the values associated with @key cannot be interpreted as integers then %NULL is returned and @error is set to #G_KEY_FILE_ERROR_INVALID_VALUE.