confused with Handle pointer

[wolf99]

Hi Folks

Pointers in C is something I always end up confusing myself with...

I have a function that is passed a pointer to a handle. this function should then pass that pointer on to a sub-function.

int txSerial (HANDLE *hComm) {
  // Do some stuff using *hComm here.
  // EG. 
  if (*hComm == INVALID_HANDLE_VALUE) {
    printf("Comm port returned an invalid handle\n");
    return 1;
  }
  return 0;
}

int txSPI (HANDLE *hComm) {
  return (txSerial(hComm));  //<<--- CONFUSED HERE.
}

int main (void) {
  HANDLE hComm1;
  int x;
  // Assign a handle to hComm1.

  x = txSPI(&hComm1);
  return x;
}

My confusion is where I call the sub-function txSerial().
Should I be passing *hComm or hComm ???
Got my thinking all knotted up here, help much appreciated, Thanks