Window = glfw.Window

proc init_graphics(engine: MyouEngine; width, height: int32; title: string;
                   opengl_version = 330; opengl_es = false) {.
    ...raises: [Exception], tags: [RootEffect].}

proc make_window(width, height: int32; title: string): Window {.
    ...raises: [Exception], tags: [RootEffect].}

proc myouAndroidGetActivity(): pointer {....raises: [], tags: [].}

proc myouSetKeyboardVisible(show: bool) {....raises: [], tags: [].}

proc platform_switch_screen(screen: Screen): bool {.inline, ...raises: [], tags: [].}

proc screen(window: Window): Screen {.inline, ...raises: [], tags: [].}

proc screen=(window: Window; screen: Screen) {.inline, ...raises: [Exception],
    tags: [RootEffect].}

proc set_vsync(window: Window; vsync: bool) {....raises: [], tags: [].}

proc start_platform_main_loop(engine: MyouEngine;
                              main_loop: proc (self: MyouEngine)) {.
    ...raises: [Exception], tags: [RootEffect].}