(If this is too non-suse-specific for this list, just shout. But the platform it will run on is SUSE 10.x) Back in the days of character displays (non-X at least), if I wanted quick key press notification I simply set up the keyboard file descriptor to send SIGIO when a user pressed a key. Worked a charm. Then came X... I still need quick key press notification. However, multiple window GUIs make this very difficult. The key press is tied to a window and must be processed in the proper context. I buy that. But what if I need the fastest and most reliable (in terms of latency) access to a key press in a program running under X? The reason for this is that I have an application where a user indicates an activity by a key press. Delays are to be avoided. I have been toying with using some USB key device (e.g., www.xkeys.com) instead of the keyboard. But isn't there a delay in USB 1 transmissions? Perhaps this is less than the delay in X. in getting the key to me. Any ideas? Maybe I can get key presses more direct from X and pass back the ones I am not interested in? There is a caveat: I do X via embedded Tk. The scripting capability is really handy. But the Tk library has access to X. -- Roger Oberholtzer OPQ Systems AB Ramböll Sverige AB Kapellgränd 7 P.O. Box 4205 SE-102 65 Stockholm, Sweden Tel: Int +46 8-615 60 20 Fax: Int +46 8-31 42 23