Associates a new value with key under group_name.
If key cannot be found then it is created. If group_name cannot
be found then it is created. To set an UTF-8 string which may contain
characters that need escaping (such as newlines or spaces), use
g_key_file_set_string().
Since 2.6
Associates a new value with key under group_name. If key cannot be found then it is created. If group_name cannot be found then it is created. To set an UTF-8 string which may contain characters that need escaping (such as newlines or spaces), use g_key_file_set_string(). Since 2.6