Bring in a simple SDL2 demo for completeness. It's running in a main.cpp to test SDL2 in C++.

sdl2demo/main.cpp

@@ -0,0 +1,36 @@
+#include "SDL.h"
+
+int main(int argc, char *argv[])
+{
+    SDL_Window *window;
+    SDL_Renderer *renderer;
+    SDL_Surface *surface;
+    SDL_Event event;
+
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s", SDL_GetError());
+        return 3;
+    }
+
+    if (SDL_CreateWindowAndRenderer(1920, 1080, SDL_WINDOW_RESIZABLE, &window, &renderer)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window and renderer: %s", SDL_GetError());
+        return 3;
+    }
+
+    while (1) {
+        SDL_PollEvent(&event);
+        if (event.type == SDL_QUIT) {
+            break;
+        }
+        SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0x00, 0x00);
+        SDL_RenderClear(renderer);
+        SDL_RenderPresent(renderer);
+    }
+
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+
+    SDL_Quit();
+
+    return 0;
+}

sdl2demo/meson.build

@@ -0,0 +1,11 @@
+project('sdl2demo', 'cpp',
+  default_options: [
+    'cpp_std=c++17',
+    ])
+
+sdl2_dep = dependency('sdl2')
+imgui_dep = dependency('imgui')
+
+executable('sdl2demo', 'main.cpp',
+  win_subsystem: 'windows',
+  dependencies: [sdl2_dep, imgui_dep])

sdl2demo/setup.ps1

@@ -0,0 +1,5 @@
+mkdir builddir
+mkdir subprojects
+meson wrap install imgui
+meson wrap install sdl2
+meson setup builddir