Handle
VkSurfaceKHR
Opaque handle to a surface object
Native platform surface or window objects are abstracted by surface objects,
which are represented by VkSurfaceKHR handles:
VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkSurfaceKHR)
The VK_KHR_surface extension declares the VkSurfaceKHR
object, and provides a function for destroying VkSurfaceKHR objects.
Separate platform-specific extensions each provide a function for creating a
VkSurfaceKHR object for the respective platform.
From the application’s perspective this is an opaque handle, just like the
handles of other Vulkan objects.