[Xpert]about clear

[Martin Ding]

Hi,     I try to catch the request the client sended. most of  them can be recognised.     However, in a terminal, I type "clear" command to clear the characters, no suitably request find.     I guess the related xlib function may be clearwinow or copyarea or cleararea, but none looks right.     Anynone could tell me the right request or event it caused.     thanks in advance