@ stdcall _DxApi@20(long ptr long ptr long)
@ stdcall _DxApiGetVersion@0()
@ stdcall _DxApiInitialize@32(ptr ptr ptr ptr ptr ptr ptr ptr)
@ stdcall _DxAutoflipUpdate@20(ptr ptr ptr ptr ptr)
@ stdcall _DxEnableIRQ@8(ptr ptr)
@ stdcall _DxLoseObject@8(ptr ptr)
@ stdcall _DxUpdateCapture@12(ptr ptr ptr)