code: func GetObjectPtrLabel(ptr unsafe.Pointer, bufSize int32, length *int32, label *uint8) {
  	syscall.Syscall6(gpGetObjectPtrLabel, 4, uintptr(ptr), uintptr(bufSize), uintptr(unsafe.Pointer(length)), uintptr(unsafe.Pointer(label)), 0, 0)
  }
docs: // retrieve the label of a sync object identified by a pointer