Creating the Filter’s Handle Class

SourcePro Core : Threads Module User's Guide : PART III Foundation Packages : The Execution Tracing Package : Using Trace Filters : Creating User-defined Filters : Creating the Filter’s Handle Class

If your filter’s body class has any new public members (in addition to those inherited from its base classes), you must create a derived handle class that forwards those calls to your body. Derive your handle from RWTraceMultiClientFilter, for a multiple-client filter, or RWTraceSingleClientFilter, for a single-client filter. For an example, see the source code for RWTraceLevelFilter: