Added the basic sdl window

.gitignore

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+# Build directories
+build/
+out/
+cmake-build-*/
+
+# IDE specific files
+.idea/
+.vs/
+.vscode/
+*.swp
+*.swo
+
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+project(SDLWindow C)
+
+# Set C99 standard
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
+# Find SDL2 package
+find_package(SDL2 REQUIRED)
+
+# Add executable
+add_executable(${PROJECT_NAME} src/main.c)
+
+# Link SDL2
+target_link_libraries(${PROJECT_NAME} PRIVATE SDL2::SDL2) 

src/main.c

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+#include <SDL2/SDL.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#define WINDOW_WIDTH 800
+#define WINDOW_HEIGHT 600
+
+int main(int argc, char* argv[]) {
+    SDL_Window* window = NULL;
+    SDL_Renderer* renderer = NULL;
+    bool running = true;
+    SDL_Event event;
+
+    // Initialise SDL
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        fprintf(stderr, "SDL could not initialise! SDL_Error: %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Create window
+    window = SDL_CreateWindow(
+        "SDL Window",
+        SDL_WINDOWPOS_UNDEFINED,
+        SDL_WINDOWPOS_UNDEFINED,
+        WINDOW_WIDTH,
+        WINDOW_HEIGHT,
+        SDL_WINDOW_SHOWN
+    );
+
+    if (window == NULL) {
+        fprintf(stderr, "Window could not be created! SDL_Error: %s\n", SDL_GetError());
+        return 1;
+    }
+
+    // Create renderer
+    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    if (renderer == NULL) {
+        fprintf(stderr, "Renderer could not be created! SDL_Error: %s\n", SDL_GetError());
+        SDL_DestroyWindow(window);
+        SDL_Quit();
+        return 1;
+    }
+
+    // Main loop
+    while (running) {
+        // Handle events
+        while (SDL_PollEvent(&event)) {
+            if (event.type == SDL_QUIT) {
+                running = false;
+            }
+        }
+
+        // Clear screen
+        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+        SDL_RenderClear(renderer);
+
+        // Present renderer
+        SDL_RenderPresent(renderer);
+    }
+
+    // Clean up
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+
+    return 0;
+}