Forums Developers ques for Saturn/author if this c++ sendmirc code

void sendmirc(HWND hwnd, const char *data) {
  HANDLE hmap, hmutex;
  char *ptr;

  // create the filemapping object
  if ((hmap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
   0, 1024, "mIRC")) == NULL) return;

  // at this point we SHOULD check GetLastError() to see if it's set to
  // ERROR_ALREADY_EXISTS; that's how mIRC prescribes that it must be done,
  // and if all DLL coders did this, we would not need a mutex at all.

  // map the shared memory onto our address space
  if ((ptr = (char *)MapViewOfFile(hmap, FILE_MAP_ALL_ACCESS, 0, 0, 0)) == NULL) {
    CloseHandle(hmap);

    return;
  }

  // the creation and mapping of the virtual file done so far, can not lead to
  // synchronization problems on itself; we only need to protect actual access

  // so, create or open a mutex that will protect the shared memory access
  if ((hmutex = CreateMutex(NULL, FALSE, "mIRC_SendMessage")) != NULL) {

    // wait for this mutex to be released - if it is currently locked, wait!
    WaitForSingleObject(hmutex, INFINITE);

    // now that we hold the mutex, we can access the shared memory safely
    lstrcpyn(ptr, data, 4096);

    // and tell mIRC to execute our command
    SendMessage(hwnd, WM_USER + 200, 0, NULL);

    // release and destroy the mutex
    ReleaseMutex(hmutex);

    CloseHandle(hmutex);
  }

  // unmap and close the filemapping
  UnmapViewOfFile(ptr);

  CloseHandle(hmap);
}

alias blah {
var %x 1
while (%x <= 20) {
$dllcall(blah.dll, $null, function, datahere)
inc %x
}
}
}

int WINAPI function(HWND, HWND, char *data, char *parms, BOOL, BOOL) {
//connect socket
//blah blah
// get socket data blah blah
char toSend[256];
strcpy(toSend, "Socket data: ");
strcat(toSend, dataa);
sendmirc(toSend);
}