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POProgram shuts down immediately SDL
 

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  1. POProgram shuts down immediately SDL
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    <p>When I run this code (from the Lazy Foo SDL tutorial) the program immediately shuts down. Why is that? I'm sorry if it gets kind of messy because of the lack of comments, but I thought that it didn't really matter since there were comments on Lazy Foo's post. I get no errors when building it. </p> <pre><code>#include "SDL/SDL_image.h" #include "SDL/SDL.h" #include &lt;string&gt; const int SCREEN_WIDTH = 640; const int SCREEN_HEIGHT = 480; const int SCREEN_BPP = 32; SDL_Surface *image = NULL; SDL_Surface *screen = NULL; SDL_Event event; SDL_Surface *load_image (std::string filename) { SDL_Surface* loadedImage = NULL; SDL_Surface* optimizedImage = NULL; loadedImage = IMG_Load( filename.c_str()); if(loadedImage != NULL) { optimizedImage = SDL_DisplayFormat (loadedImage); SDL_FreeSurface(loadedImage); } return optimizedImage; } void apply_surface (int x, int y, SDL_Surface* source, SDL_Surface* destination) { SDL_Rect offset; offset.x = x; offset.y = y; SDL_BlitSurface (source, NULL, destination, &amp;offset); } bool init() { if (SDL_Init(SDL_INIT_EVERYTHING) == -1) { return false; } screen = SDL_SetVideoMode (SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE); if (screen == NULL) { return false; } SDL_WM_SetCaption("Event test", NULL); return true; } bool load_files() { image = load_image ("background.png"); if (image == NULL) { return false; } return true; } void clean_up() { SDL_FreeSurface(image); SDL_Quit(); } int main(int argc, char* args[]) { bool quit = false; if (init() == false) { return 1; } if (load_files() == false) { return 1; } apply_surface(0,0, image, screen); if(SDL_Flip(screen) == -1) { return 1; } while(quit == false) { while (SDL_PollEvent(&amp;event)) { if(event.type == SDL_QUIT) { quit = true; } } } clean_up(); return 0; } </code></pre>
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    1. USLoke Granianson
    1. USLoke Granianson
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    1. COIf you re in Visual Studio, make sure that you run it using Ctr+F5 (start without debugging), instead of using F5 (start debugging).
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      1. POProgram shuts down immediately SDL
      1. USFKaria
    2. COThere are too many things that could go wrong there, for instance, every error code you return, is the same. The return value of main should be an error code that represents something, if you return with 0, that means none-errors, all your errors get '1' so you can never tell which of them happened. I suggest you also add debug comments inside every loop or if statement... good luck :)
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      1. USuser1708860
    3. COMaybe add some printfs to see where it is exiting? Maybe with `SDL_GetError()`?
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      1. USZach Stark
 

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