[Xpert]about RECORD extension

[martin_ding2001]

I am trying to use RECORD extension, but there is  something I can't understand clearly. When I call XRecordEnableContext and do some operation in machine, XRecordInterceptProc function will be invoked. Now about structure XRecordInterceptData in XRecordInterceptProc, there is a member "data" in it, and I just don't know what the "data" contain(unsigned char * data). How can I get what I need from data? And are there any good examples about RECORD extension? Thanks in Advance!