HANDLE Threads[THREAD_NUM]

void LaunchThread (int i) {
  *some checks if the handle is not null etc*;
  DWORD threadId;
  threads[i] = CreateThread (
    NULL,
    0,
    (LPTHREAD_START_ROUTINE)*StaticMethodInvokingTheThreadFunc,
    *StructPassingToThatMethod ( basically have a pointer and thread number)*,
    0,
    &threadId);
  *DebugMessage "thread created"*;
  *DebugMessage "with id = (threadId)"*;
}

void DoSmth () {
  *DebugMessage "thread func started"*;
  ...;
  *then code with another messages all the way*;
}

void WaitThread (i){
  *DebugMessage "wait for thread to finish"*;
  WaitForSingleObject (Threads[i], INFINITE);
}

LaunchThread (i);
WaitThread (i);

"thread created"
"thread func started" (and nothing done after that message in DoSmth () func)
"with id = .."
"wait for thread to finish"

for ( int t = 0; t < THREAD_NUM; t++)
   LaunchThread (t);