21 #ifndef __JackClientInterface__    22 #define __JackClientInterface__    24 #include "JackCompilerDeps.h"    29 struct JackClientControl;
    45         virtual int Close() = 0;
    47         virtual int ClientNotify(
int refnum, 
const char* name, 
int notify, 
int sync, 
const char* message, 
int value1, 
int value2) = 0;
 
Client control possibly in shared memory.