INT64 __fastcall IoSetIoPriorityHintIntoFileObject(_FILE_OBJECT *FileObject, _IO_PRIORITY_HINT PriorityHint){
INT64 result;
PVOID FoExt;
FoExt = 0i64;
if( (unsigned int)PriorityHint >= MaxIoPriorityTypes )
return 3221225485i64;
LODWORD(result) = IopAllocateFileObjectExtension(FileObject, &FoExt);
if( (int)result >= 0 )
*((_DWORD *)FoExt + 20) = PriorityHint + 1;
return result;
}