- SHOW_CALLBACK ("am callback 0x%p, opcode = %d, plugin = \"%s\" ", (void*) DEBUG_THREAD_SELF, opcode, plug->name());
+ DEBUG_TRACE (PBD::DEBUG::VSTCallbacks, string_compose ("am callback 0x%1%2, opcode = %3%4, plugin = \"%5\" ",
+ std::hex, (void*) DEBUG_THREAD_SELF,
+ std::dec, opcode, plug->name()));