Implemented NtSignalAndWaitForSingleObject.

diff --git a/include/winternl.h b/include/winternl.h
index 23cd849..0952467 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -1521,7 +1521,7 @@
 NTSTATUS  WINAPI NtSetSystemTime(const LARGE_INTEGER*,LARGE_INTEGER*);
 NTSTATUS  WINAPI NtSetTimer(HANDLE, const LARGE_INTEGER*, PTIMERAPCROUTINE, PVOID, BOOLEAN, ULONG, BOOLEAN*);
 NTSTATUS  WINAPI NtSetValueKey(HKEY,const UNICODE_STRING *,ULONG,ULONG,const void *,ULONG);
-NTSTATUS  WINAPI NtSignalAndWaitForSingleObject(HANDLE,HANDLE,BOOLEAN,PLARGE_INTEGER);
+NTSTATUS  WINAPI NtSignalAndWaitForSingleObject(HANDLE,HANDLE,BOOLEAN,const LARGE_INTEGER*);
 NTSTATUS  WINAPI NtSuspendThread(HANDLE,PULONG);
 NTSTATUS  WINAPI NtTerminateProcess(HANDLE,LONG);
 NTSTATUS  WINAPI NtTerminateThread(HANDLE,LONG);