c++ - How can I prevent my program from closing when a open console window is closed?

Question

I am trying to open the console from my main program (Win32). I found some code, and it works, but I don't understand it. The problem I'm happening is that when I click X on the console, it closes the program as well.

Roughly I have this:

int APIENTRY WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil) {

  // create the main program window, classes registered, etc...
  hwnd = CreateWindowEx(0, csClassName, "theNewTimer", WS_POPUP | WS_CLIPCHILDREN, 300, 0, WINDOW_WIDTH, WINDOW_HEIGHT, HWND_DESKTOP, NULL, hThisInstance, NULL);
  ShowWindow (hwnd, nFunsterStil);

  // and now the console
  AllocConsole();
  HANDLE handle_out = GetStdHandle(STD_OUTPUT_HANDLE);
  int hCrt = _open_osfhandle((long) handle_out, _O_TEXT);
  FILE* hf_out = _fdopen(hCrt, "w");
  setvbuf(hf_out, NULL, _IONBF, 1);
  *stdout = *hf_out;

  HANDLE handle_in = GetStdHandle(STD_INPUT_HANDLE);
  hCrt = _open_osfhandle((long) handle_in, _O_TEXT);
  FILE* hf_in = _fdopen(hCrt, "r");
  setvbuf(hf_in, NULL, _IONBF, 128);
  *stdin = *hf_in;


// and then the message loop concluding

I googled some of it, but had no idea of what I was reading.

Answer 1

One thing you can do is disable the close button on the console window:

HWND hwnd = ::GetConsoleWindow();
if (hwnd != NULL)
{
   HMENU hMenu = ::GetSystemMenu(hwnd, FALSE);
   if (hMenu != NULL) DeleteMenu(hMenu, SC_CLOSE, MF_BYCOMMAND);
}