Good way to handle frames per second?

Hi, I'm writing an application that must show frames at a specified speed... I'm doing it like this:

Code:

---

        Uint32 offset = SDL_GetTicks();

        for (unsigned int i=0; i<videoFileManager.getFramesNumber(); i++){
                showNextFrame();
                while ((SDL_GetTicks() - offset) < (i*1000/videoFileManager.getFPS()) ){} //Waits until it's time to show the next frame
        }

---

Ok. That works great... However, when I try to close my application before all the frames have been shown, it hangs (I get that Windows error message with the "Don't send" button). How could I manage to achieve managing the frames per second, being also able to manually close the application?

If you're a decent windows programmer then I'll assume that you know what this all means:

Code:

---

MSG Msg;
Uint32 offset = SDL_GetTicks();

for (unsigned int i=0; i<videoFileManager.getFramesNumber(); i++){
    if (PeekMessage(&Msg, 0, 0, 0, PM_REMOVE)
    {
          if (Msg.message == WM_QUIT)
              break;
          TranslateMessage(&Msg);
          DisplatchMessage(&Msg);
    }
    showNextFrame();
    while ((SDL_GetTicks() - offset) < (i*1000/videoFileManager.getFPS()) ){} //Waits until it's time to show the next frame
}

---

Checking for messages, displaying a frame, then syncing you FPS should all be part of any game loop you ever write. Nuff said.

Great, that works. However, I'd really love not having to depend on windows for this... Any ideas of how to do it with SDL?