diff --git a/include/SDL3/SDL_hints.h b/include/SDL3/SDL_hints.h index 7e00e1f9f..84682c8b8 100644 --- a/include/SDL3/SDL_hints.h +++ b/include/SDL3/SDL_hints.h @@ -3373,6 +3373,17 @@ extern "C" { */ #define SDL_HINT_VITA_TOUCH_MOUSE_DEVICE "SDL_VITA_TOUCH_MOUSE_DEVICE" +/** + * A variable overriding the display index used in SDL_Vulkan_CreateSurface() + * + * The display index starts at 0, which is the default. + * + * This hint should be set before calling SDL_Vulkan_CreateSurface() + * + * \since This hint is available since SDL 3.0.0. + */ +#define SDL_HINT_VULKAN_DISPLAY "SDL_VULKAN_DISPLAY" + /** * Specify the Vulkan library to load. * diff --git a/src/video/SDL_vulkan_utils.c b/src/video/SDL_vulkan_utils.c index bb42b4933..c5223cdb0 100644 --- a/src/video/SDL_vulkan_utils.c +++ b/src/video/SDL_vulkan_utils.c @@ -209,7 +209,7 @@ int SDL_Vulkan_Display_CreateSurface(void *vkGetInstanceProcAddr_, SDL_SetError(VK_KHR_DISPLAY_EXTENSION_NAME " extension is not enabled in the Vulkan instance."); goto error; } - chosenDisplayId = SDL_getenv("SDL_VULKAN_DISPLAY"); + chosenDisplayId = SDL_GetHint(SDL_HINT_VULKAN_DISPLAY); if (chosenDisplayId) { displayId = SDL_atoi(chosenDisplayId); }