윈32 인듯..
http://www.koders.com/c/fidAA4CD5C51E08C09EAEE73AB04B4E340CF7E0D2BC.aspx
gcc 에서 돌려봐도 잘 됐으.. (gdtesttft.c)
http://www.codase.com/search/display?file=L2dlbnRvbzIvdmFyL3RtcC9yZXBvcy9jb2Rhc2UuYy9nZC0yLjAuMzIvd29yay9nZC0yLjAuMzIvZ2R0ZXN0ZnQuYw==&lang=c