Platform_Extensions.VK_EXT_DIRECTFB_SURFACE_SPEC_VERSION

Undocumented in source but is binding to an external library. You might be able to learn more by searching the web for its name.
mixintemplate Platform_Extensions(extensions...)
extern (System) nothrow @nogc
static if(!(__traits(isSame, extension, KHR_xlib_surface)))
static if(!(__traits(isSame, extension, KHR_xcb_surface)))
static if(!(__traits(isSame, extension, KHR_wayland_surface)))
static if(!(__traits(isSame, extension, KHR_android_surface)))
static if(!(__traits(isSame, extension, KHR_win32_surface)))
static if(!(__traits(isSame, extension, KHR_video_queue)))
static if(!(__traits(isSame, extension, KHR_video_decode_queue)))
static if(!(__traits(isSame, extension, KHR_external_memory_win32)))
static if(!(__traits(isSame, extension, KHR_win32_keyed_mutex)))
static if(!(__traits(isSame, extension, KHR_external_semaphore_win32)))
static if(!(__traits(isSame, extension, KHR_external_fence_win32)))
static if(!(__traits(isSame, extension, KHR_portability_subset)))
static if(!(__traits(isSame, extension, KHR_video_encode_queue)))
static if(!(__traits(isSame, extension, EXT_video_encode_h264)))
static if(!(__traits(isSame, extension, EXT_video_encode_h265)))
static if(!(__traits(isSame, extension, EXT_video_decode_h264)))
static if(!(__traits(isSame, extension, GGP_stream_descriptor_surface)))
static if(!(__traits(isSame, extension, NV_external_memory_win32)))
static if(!(__traits(isSame, extension, NV_win32_keyed_mutex)))
static if(!(__traits(isSame, extension, NN_vi_surface)))
static if(!(__traits(isSame, extension, EXT_acquire_xlib_display)))
static if(!(__traits(isSame, extension, MVK_ios_surface)))
static if(!(__traits(isSame, extension, MVK_macos_surface)))
static if(!(__traits(isSame, extension, ANDROID_external_memory_android_hardware_buffer)))
static if(!(__traits(isSame, extension, EXT_video_decode_h265)))
static if(!(__traits(isSame, extension, GGP_frame_token)))
static if(!(__traits(isSame, extension, FUCHSIA_imagepipe_surface)))
static if(!(__traits(isSame, extension, EXT_metal_surface)))
static if(!(__traits(isSame, extension, EXT_full_screen_exclusive)))
static if(!(__traits(isSame, extension, NV_acquire_winrt_display)))
static if(__traits(isSame, extension, EXT_directfb_surface))
enum VK_EXT_DIRECTFB_SURFACE_SPEC_VERSION = 1;

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