Olivier Galibert writes: Olivier> Application-wise, iconified and unmapped are equivalent (that's why Olivier> it says "non-visible or iconified"). I'm not sure you can make the Olivier> difference. En gros, XGetWindowProperty for IconicState. -- / / _ _ Didier Verna http://www.inf.enst.fr/~verna/ - / / - / / /_/ / E.N.S.T. INF C201.1 mailto:verna＠inf.enst.fr /_/ / /_/ / /__ / 46 rue Barrault Tel. (33) 01 45 81 73 46 75634 Paris cedex 13 Fax. (33) 01 45 81 31 19