Création fenêtre + renderer Snakes

travail_individuel/Beret/snakes/main.c

+#include <SDL2/SDL.h>
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char **argv) {
+    (void)argc;
+    (void)argv;
+
+    SDL_Window 
+       *window_1 = NULL;
+    SDL_Renderer
+        *renderer = NULL;
+
+    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
+    SDL_Log("Error : SDL initialisation - %s\n", 
+             SDL_GetError());                // l'initialisation de la SDL a échoué 
+    exit(EXIT_FAILURE);}
+
+    SDL_DisplayMode DM;
+    SDL_GetCurrentDisplayMode(0, &DM);
+
+    /* Création de la fenêtre de gauche */
+    window_1 = SDL_CreateWindow("Premier dessin",
+                            SDL_WINDOWPOS_CENTERED,
+                            SDL_WINDOWPOS_CENTERED, DM.w * 0.66,
+                            DM.h * 0.66,
+                            SDL_WINDOW_OPENGL);              
+
+    if (window_1 == NULL) {
+        SDL_Log("Error : SDL window 1 creation - %s\n", 
+                SDL_GetError());                 // échec de la création de la fenêtre
+        SDL_Quit();                              // On referme la SDL       
+        exit(EXIT_FAILURE);
+    }
+
+    renderer = SDL_CreateRenderer(window_1, -1,
+                                SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+    if (renderer == NULL) {SDL_DestroyRenderer(renderer);                                  // Attention : on suppose que les NULL sont maintenus !!
+    renderer = NULL;
+
+    SDL_DestroyWindow(window_1);
+    window_1 = NULL;};
+
+    //draw(renderer);                                       
+    SDL_RenderPresent(renderer);
+    SDL_Delay(2000); 
+    SDL_DestroyRenderer(renderer);                                  // Attention : on suppose que les NULL sont maintenus !!
+    renderer = NULL;
+
+    SDL_DestroyWindow(window_1);
+    window_1 = NULL;
+    SDL_Quit();                                
+
+    return 0;
+}