int main(int argc, char* argv[]) { // 1. Initialize SDL3 video subsystem only if (!SDL_Init(SDL_INIT_VIDEO)) { SDL_Log("SDL_Init Error: %s", SDL_GetError()); return 1; }
– SDL_CreateRenderer is simplified: it no longer requires an index or a “driver” parameter; passing NULL for the second argument auto-selects the best backend. The flags SDL_RENDERER_ACCELERATED ensure we use GPU hardware. sdl3 example
// 5. Main loop while (running) { // Handle events while (SDL_PollEvent(&event)) { if (event.type == SDL_EVENT_QUIT) { running = false; } else if (event.type == SDL_EVENT_KEY_DOWN) { if (event.key.key == SDLK_ESCAPE) { running = false; } } } int main(int argc, char* argv[]) { // 1
– SDL3 has renamed many event types. The quit event is now SDL_EVENT_QUIT (instead of SDL_QUIT ). Key events follow a similar pattern: SDL_EVENT_KEY_DOWN and the key code is accessed via event.key.key (where SDLK_ESCAPE is unchanged). The event loop is non-blocking thanks to SDL_PollEvent . Key events follow a similar pattern: SDL_EVENT_KEY_DOWN and
// 3. Create a renderer for accelerated 2D SDL_Renderer* renderer = SDL_CreateRenderer(window, NULL, SDL_RENDERER_ACCELERATED); if (!renderer) { SDL_Log("SDL_CreateRenderer Error: %s", SDL_GetError()); SDL_DestroyWindow(window); SDL_Quit(); return 1; }
// sdl3_bounce.c // Compile (Linux/macOS): gcc sdl3_bounce.c -o bounce `pkg-config --cflags --libs sdl3` // Compile (Windows with vcpkg): cl sdl3_bounce.c /Ipath\to\SDL3\include /link path\to\SDL3\lib\SDL3.lib #include <SDL3/SDL.h> #include <stdio.h> #include <stdbool.h>