anchor.diff:    function SDL_IsPixelFormat_FOURCC(format: Variant);
   
     {* Note: If you modify this list, update SDL_GetPixelFormatName() *}
  -           
  +
  +const
       SDL_PIXELFORMAT_UNKNOWN = 0;
       SDL_PIXELFORMAT_INDEX1LSB = (1 shl 28)                    or
                                   (SDL_PIXELTYPE_INDEX1 shl 24) or
  
positive.code:    *  Read an item of the specified endianness and return in native format.
     *}
  
  function SDL_ReadU8(src: PSDL_RWops): UInt8;
  function SDL_ReadLE16(src: PSDL_RWops): UInt16;
  function SDL_ReadBE16(src: PSDL_RWops): UInt16;
  function SDL_ReadLE32(src: PSDL_RWops): UInt32;
  function SDL_ReadBE32(src: PSDL_RWops): UInt32;
  function SDL_ReadLE64(src: PSDL_RWops): UInt64;
  function SDL_ReadBE64(src: PSDL_RWops): UInt64;
  
    {*Read endian functions*}
  
  
negative.code:    *  1 if the cursor is shown, or 0 if the cursor is hidden.
     *}
  
    function SDL_ShowCursor(toggle: SInt32): SInt32 cdecl; external {$IFDEF GPC} name 'SDL_ShowCursor' {$ELSE} SDL_LibName {$ENDIF};
  
  const
    {**
  