Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_Vulkan_GetVkGetInstanceProcAddr - Get the address of the vkGetInstanceProcAddr function.
SYNOPSIS
#include <SDL3/SDL_vulkan.h>
SDL_FunctionPointer SDL_Vulkan_GetVkGetInstanceProcAddr(void);
DESCRIPTION
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();
RETURN VALUE
Returns the function pointer for vkGetInstanceProcAddr or NULL on failure; call SDL_GetError() for more
information.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_Vulkan_GetVkGetInstanceProcAddr(3)