Setting up GLAD 2.0.8 using CMake and Visual Studio 2022 for Desktop

• Install SDL3 3.2.4 using this guide: How to install SDL 3.2.4 using CMake and Visual Studio 2022 for Desktop
• Install GLAD 2.0.8 using this guide: How to install GLAD 2.0.8 using CMake and Visual Studio 2022 for Desktop
• Run Visual Studio
• Click on the "Create a new project" button:

• Click on the "CMake Project" and click on the "Next" button:

• Type a project name, set a project location, check the "Place solution and project in the same directory" checkbox:

• Click on the "Create" button:

• Wait a few seconds for configuration
• Run the project on the empty green triangle (or Ctrl+F5):

• The program prints "Hello CMake" to the console:

• Double click on the "CMakePresets.json" file:

• Add the "SDL3" variable with the following "value" and "type" for "Debug":

        {
            "name": "x64-debug",
            "displayName": "x64 Debug",
            "inherits": "windows-base",
            "architecture": {
                "value": "x64",
                "strategy": "external"
            },
            "cacheVariables": {
                "CMAKE_BUILD_TYPE": "Debug",
                "SDL3": {
                    "value": "E:\\libs\\sdl-3.1.10-msvc\\win\\debug\\cmake",
                    "type": "PATH"
                }
            }
        },

• Make the same for "Release":

        {
            "name": "x64-release",
            "displayName": "x64 Release",
            "inherits": "x64-debug",
            "cacheVariables": {
                "CMAKE_BUILD_TYPE": "Release",
                "SDL3": {
                    "value": "E:\\libs\\sdl-3.1.10-msvc\\win\\release\\cmake",
                    "type": "PATH"
                }
            }
        },

• Double click on the "CMakeLists.json" file:

• Add this code to the "CMakeLists.json" file

target_include_directories(set-background-color PRIVATE E:/libs/glad-2.0.8/include)

target_sources(set-background-color
PRIVATE
    E:/libs/glad-2.0.8/src/glad.c
)

find_package(SDL3)
target_link_libraries(set-background-color PRIVATE SDL3::SDL3)

• Replace the "set-background-color.cpp" file content with the following content:

#define SDL_MAIN_USE_CALLBACKS 1 // Use the callbacks instead of main()

#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>
#include <glad/glad.h>

static SDL_Window* window = NULL;
SDL_GLContext glContext;

SDL_AppResult SDL_AppInit(void** appstate, int argc, char* argv[])
{
    if (!SDL_Init(SDL_INIT_VIDEO)) {
        SDL_Log("Couldn't initialize SDL: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); // Enable MULTISAMPLE
    SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 2); // can be 2, 4, 8 or 16

    // Create a window
    window = SDL_CreateWindow("Background", 400, 300,
        SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
    if (!window) {
        SDL_Log("Couldn't create window: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    // Create an OpenGL context
    glContext = SDL_GL_CreateContext(window);
    if (!glContext)
    {
        SDL_Log("Couldn't create window: %s", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    SDL_GL_SetSwapInterval(1); // Turn on vertical sync

    if (!gladLoadGL())
    {
        SDL_Log("Failed to initialize OpenGL function pointers");
        return SDL_APP_FAILURE;
    }

    //glClearColor(0.188f, 0.22f, 0.255f, 1.f); // Blue
    glClearColor(0.2f, 0.5f, 0.2f, 1.f); // Green

    return SDL_APP_CONTINUE;
}

SDL_AppResult SDL_AppEvent(void* appstate, SDL_Event* event)
{
    if (event->type == SDL_EVENT_QUIT) {
        return SDL_APP_SUCCESS;
    }
    return SDL_APP_CONTINUE;
}

SDL_AppResult SDL_AppIterate(void* appstate)
{
    glClear(GL_COLOR_BUFFER_BIT);
    SDL_GL_SwapWindow(window);
    return SDL_APP_CONTINUE;
}

void SDL_AppQuit(void* appstate, SDL_AppResult result)
{
    // Window will be automatically removed

    SDL_GL_DestroyContext(glContext);
}

• Run the program (Ctrl+F5):