SDL_Vulkan_G...tanceProcAddr(3)

💅 SDL_Vulkan_GetVkGetInstanceProcAddr 💅

okay bestie, welcome to the SDL3 FUNCTIONS section of the manual, and today's main character is SDL_Vulkan_GetVkGetInstanceProcAddr. yes the name is long. no we are not shortening it. she earned every character. 🎀

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✨ NAME ✨

SDL_Vulkan_GetVkGetInstanceProcAddr — get the address of the vkGetInstanceProcAddr function. that's it, that's the whole job. fetch the pointer. slay. 🦋

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✨ SYNOPSIS ✨

#include <SDL3/SDL_vulkan.h>

SDL_FunctionPointer SDL_Vulkan_GetVkGetInstanceProcAddr(void);

look at her. no arguments. takes absolutely nothing from you, gives you a function pointer back. queen behavior. 👑

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✨ DESCRIPTION ✨

so here's the tea: you gotta call this after you've either called SDL_Vulkan_LoadLibrary() or created an SDL_Window with the SDL_WINDOW_VULKAN flag. do it before that and, like, no. 🙈

the actual type of the returned function pointer is PFN_vkGetInstanceProcAddr, but — and this is the part that trips people up — that type isn't available here, because the Vulkan headers are not included in this header. so you have to cast the return value yourself. for example:

vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_Vulkan_GetVkGetInstanceProcAddr();

cast it. don't forget to cast it. i'm literally begging you to cast it. 💅

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✨ RETURN VALUE ✨

returns the function pointer for vkGetInstanceProcAddr, or NULL on failure. if you get NULL, call SDL_GetError() for more info — she will tell you what went wrong, no cap. 😭

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✨ AVAILABILITY ✨

this function has been available since SDL 3.2.0. so if you're on anything older, bestie, that's a vibe check fail. 💀

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and that's the whole page!! stay hydrated, cast your pointers, and go build something iconic 🌈💜

— with love from the Simple Directmedia Layer girlies, SDL 3.4.18 edition 🫶✨🎀