#ifndef _NTUSER_H

NTSYSCALLAPI
ULONG_PTR
NTAPI
NtUserSetTimer(
    _In_ HWND WindowHandle,
    _In_ ULONG_PTR IDEvent,
    _In_ ULONG Elapse,
    _In_ TIMERPROC TimerFunc,
    _In_ ULONG ToleranceDelay
    );

#endif
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