Get the address of the vkGetInstanceProcAddr
function.
Defined in <SDL3/SDL_vulkan.h>
Returns the function pointer for vkGetInstanceProcAddr
or NULL on error.
This should be called after either calling SDL_Vulkan_LoadLibrary() or creating an SDL_Window with the SDL_WINDOW_VULKAN
flag.
The actual type of the returned function pointer is PFN_vkGetInstanceProcAddr, but that isn't available because the Vulkan headers are not included here. You should cast the return value of this function to that type, e.g.
vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_Vulkan_GetVkGetInstanceProcAddr();
This function is available since SDL 3.0.0.