Im currently using GLFW for window creation and user input. GLFW simply allows us to say:
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
To tell GLFW were not working with OpenGL. It even provides function like
glfwCreateWindowSurface(...)
To automate window surface creation for different platforms.
Is there any way I can do something similar with SFML? I could not find any information about it on their website, so i assume the answer is no. But maybe there is some kind of hack, or is this not advised?
Vulkan is supported in the next minor release; SFML 2.6.0.
The new sf::WindowBase class, serves as the base class for all Windows. It provides a simple interface for manipulating the window: move, resize, show/hide, control mouse cursor, etc. It also provides event handling through its pollEvent() and waitEvent() functions.
sf::Window still serves as a target for OpenGL rendering, but it now inherits the above functionality from sf::WindowBase. This design choice was done, so as to not break existing code: see the full discussion for info.
The new sf::WindowBase does not create an OpenGL context by default. Instead it provides a public member function createVulkanSurface with the following definition.
////////////////////////////////////////////////////////////
/// \brief Create a Vulkan rendering surface
///
/// \param instance Vulkan instance
/// \param surface Created surface
/// \param allocator Allocator to use
///
/// \return True if surface creation was successful, false otherwise
///
////////////////////////////////////////////////////////////
bool createVulkanSurface(const VkInstance& instance, VkSurfaceKHR& surface, const VkAllocationCallbacks* allocator = 0);
A demonstration of usage (some 2.600 lines of code), can be found under examples in the SFML respiratory.