# SDL_HINT_VULKAN_DISPLAY A variable overriding the display index used in [SDL_Vulkan_CreateSurface](SDL_Vulkan_CreateSurface)() ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_hints.h) ## Syntax ```c #define SDL_HINT_VULKAN_DISPLAY "SDL_VULKAN_DISPLAY" ``` ## Remarks The display index starts at 0, which is the default. This hint should be set before calling [SDL_Vulkan_CreateSurface](SDL_Vulkan_CreateSurface)() ## Version This hint is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryHints](CategoryHints)