> Is there someone here who can drop me a rope and provide an example of
> this preference change?

>From PowerNet sources.
===
static void SetBeamRecv(Boolean set){
 Boolean b;
 UInt16 lib;
 Err err = SysLibFind(irLibName, &lib);
 if (err != errNone){
  return;
 }
 b = set;
 err = ExgLibControl(lib, irSetScanningMode, &b, NULL);
}
////////////////////////////////////////////////////////////////////////////
////
static Boolean GetBeamRecv(void){
 //UInt16 len = sizeof(Boolean);
 Boolean b;
 UInt16 lib;
 Err err = SysLibFind(irLibName, &lib);
 if (err != errNone){
  return false;
 }
 err = ExgLibControl(lib, irGetScanningMode, &b, NULL);
 return b;
}



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