Process returned -1073741819 (0xC0000005) in Code::Blocks

SDL Development
1

I’m a newbie to SDL2. I try some codes from a website to use SDL_ttf but the program returns -1073741819 (0xC0000005) code. Here is the code:

#include <stdio.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#include <string>
#undef main
int main()
{
	SDL_Window* window = NULL;
	SDL_Renderer* renderer = NULL;
	bool isRunning = true;
	SDL_Event mainEvent;
	TTF_Font* font = NULL;
	SDL_Surface* surface = NULL;
	SDL_Texture* texture = NULL;

	//initializes  the subsystems
	if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
	{
		printf("Unable to initialize SDL %s\n", SDL_GetError());
		return -1;
	}

	//Initialize the truetype font API.
	if (TTF_Init() < 0)
	{
		SDL_Log("%s", TTF_GetError());
		return -1;
	}

	//Create window
	window = SDL_CreateWindow("Stdio.vn - SDL", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 640, SDL_WINDOW_SHOWN);
	if (window == NULL)
	{
		printf("Could not create window %s", SDL_GetError());
		return -1;
	}

	//create a renderer
	renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
	if (renderer == NULL)
	{
		printf("Could not create render %s", SDL_GetError());
		return -1;
	}

	font = TTF_OpenFont("VeraMoBd.ttf", 30);

	SDL_Color fg = { 243, 156, 18 };


	std::string text = "Welcome you to Stdio.vn";
	surface = TTF_RenderText_Solid(font, text.c_str(), fg);
	texture = SDL_CreateTextureFromSurface(renderer, surface);
	SDL_FreeSurface(surface);

	SDL_Rect srcRest;
	SDL_Rect desRect;
	TTF_SizeText(font, text.c_str(), &srcRest.w, &srcRest.h);

	srcRest.x = 0;
	srcRest.y =  0;

	desRect.x = 200;
	desRect.y = 270;

	desRect.w = srcRest.w;
	desRect.h = srcRest.h;

	//set background color
	SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
	//main loop
	while (isRunning)
	{
		//main event
		while (SDL_PollEvent(&mainEvent))
		{
			switch (mainEvent.type)
			{
				//User - requested quit
				case SDL_QUIT:
				{
					isRunning = false;
					break;
				}
				default:
				{
					break;
				}
			}
		}
		// clear the window to black
		SDL_RenderClear(renderer);
		//Copy a portion of the texture to the current rendering target.
		SDL_RenderCopy(renderer, texture, &srcRest, &desRect);
		//draw to screen
		SDL_RenderPresent(renderer);
	}
	//Destroy a window.
	SDL_DestroyWindow(window);
	//Destroy a renderer
	SDL_DestroyRenderer(renderer);
	//Shutdown and cleanup the truetype font API.
	TTF_Quit();
	//cleans up all initialized subsystems
	SDL_Quit();
	return 0;
}

The screenshot:

SDL2
SDL21920×1080 190 KB

How to solve this error?

2

You don’t test font for being NULL, so if the font file “VeraMoBd.ttf” isn’t being opened successfully you will be passing NULL to TTF_RenderText_Solid() which could be responsible for the error. Similarly you don’t test surface or texture for being NULL, so your code is vulnerable for that reason as well.

1 Like
3

I’ve checked there are some problems with my font’s location and now it works. Thanks for your reply.