@ stdcall _DxApi@20(long ptr long ptr long) DxApi
@ stdcall _DxApiGetVersion@0() DxApiGetVersion
@ stdcall _DxApiInitialize@32(ptr ptr ptr ptr ptr ptr ptr ptr) DxApiInitialize
@ stdcall _DxAutoflipUpdate@20(ptr ptr ptr ptr ptr) DxAutoflipUpdate
@ stdcall _DxEnableIRQ@8(ptr ptr) DxEnableIRQ
@ stdcall _DxLoseObject@8(ptr ptr) DxLoseObject
@ stdcall _DxUpdateCapture@12(ptr ptr ptr) DxUpdateCapture