C++ Access violation when using SDL_ttf with SDL and SDL2

Question

I am using SDL2_ttf with SDL2 (in Visual Studio 2015). When I tried to run the following code,

#include "SDL.h"
#include "SDL_ttf.h"

int main(int argc, char* args[]) {
    SDL_Init(SDL_INIT_EVERYTHING);
    TTF_Init();

    SDL_Window* window;
    SDL_Renderer* renderer;
    SDL_CreateWindowAndRenderer(1600, 900, SDL_WINDOW_OPENGL, &window, &renderer);

    TTF_Font* font = TTF_OpenFont("comic.ttf", 12);
    SDL_Color color = { 0, 0, 0, 255 };
    SDL_Surface* textSurface = TTF_RenderText_Solid(font, "asdf", color);
    SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, textSurface);

    TTF_Quit();
    SDL_Quit();
    return 0;
}

I got a "SDL.dll missing" runtime error. I put SDL.dll, alongside SDL2.dll, libfreetype-6.dll, SDL_ttf.dll, zlib1.dll and other libraries in my system32 folder, which solved the runtime error, but I instantaneously ran into another error: "Unhandled exception at 0x000000006C812E39 (SDL2.dll) in MCP2016.exe: 0xC0000005: Access violation reading location 0x000000010000006A."

When I decided to "Break" in the Visual studio dialog telling me this, it pointed to the line

SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, textSurface);

I came across an old forum post that suggested that SDL_ttf and SDL2 can cause access violations like this because they are not completely compatible. I think this has to do something with the problems I have, since it complained about SDL.dll first. It was suggested to recompile the DLL with the SDL2 header files, but I am afraid that is beyond my competence, especially because windows and C++ do not get along very well.

I have been working on this for about eight hours now and I am running out of ideas to try to solve this. Does anyone have any ideas about this?

Have you tried using SDL_ttf 2.0? https://www.libsdl.org/projects/SDL_ttf/ — user3684240, Jul 06 '16 at 11:59
I appear to have accidentally used a version of SDL_ttf 1.0. I thought it was SDF_ttf 2.0 though :$ Thanks! — Tempestas Ludi, Jul 06 '16 at 14:21

score 3 · Accepted Answer · answered Jul 06 '16 at 12:07

3

SDL and SDL2 are not compatible. You either have one, or the other.

As mentioned in the comments, the fix is to use SDL2_ttf instead.

answered Jul 06 '16 at 12:07

Ivan Rubinson

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C++ Access violation when using SDL_ttf with SDL and SDL2

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