RtlLongPtrToIntPtr - NtDoc

#ifndef _NTINTSAFE_H_INCLUDED_
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES)

//
// LONG_PTR -> INT_PTR conversion
//
_Must_inspect_result_
__inline
NTSTATUS
RtlLongPtrToIntPtr(
    _In_ LONG_PTR lOperand,
    _Out_ _Deref_out_range_(==, lOperand) INT_PTR* piResult)
{
    C_ASSERT(sizeof(LONG_PTR) == sizeof(INT_PTR));
    *piResult = (INT_PTR)lOperand;
    return STATUS_SUCCESS;
}

#endif
#endif
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