@@ -666,18 +666,24 @@
  */
 - (size_t)writeLine: (OFString*)string;
 
 /**
  * Writes a formatted string into the stream.
+ *
+ * See printf for the format syntax. As an addition, %@ is available as format
+ * specifier for objects.
  *
  * \param format A string used as format
  * \return The number of bytes written
  */
 - (size_t)writeFormat: (OFConstantString*)format, ...;
 
 /**
  * Writes a formatted string into the stream.
+ *
+ * See printf for the format syntax. As an addition, %@ is available as format
+ * specifier for objects.
  *
  * \param format A string used as format
  * \param arguments The arguments used in the format string
  * \return The number of bytes written
  */