Cocos2d 下修改显示大小

bool AppDelegate::applicationDidFinishLaunching() {
    // initialize director
    auto director = Director::getInstance();
    auto glview = director->getOpenGLView();

    if(!glview) {
        glview = GLView::create("My Game");
        director->setOpenGLView(glview);
    }
    glview->setFrameSize(700, 500);
    
    .....
}