[Try 3] Add semi-stub implementation for SystemExecutionState query

[Luke Benstead]

This time without the superfluous "break" statements. Information
taken from here:
http://msdn.microsoft.com/en-us/library/aa372675%28VS.85%29.aspx
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From 83b45b69c63a4c42b17ca4f0eb85f85f67eb2a44 Mon Sep 17 00:00:00 2001
From: Luke Benstead <kazade at gmail.com>
Date: Tue, 14 Jul 2009 17:02:59 +0100
Subject: Add semi-stub for NtPowerInformation option - SystemExecutionState

---
 dlls/ntdll/nt.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index c457028..10e14b5 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -1328,6 +1328,16 @@ NTSTATUS WINAPI NtPowerInformation(
 			PowerCaps->DefaultLowLatencyWake = PowerSystemUnspecified;
 			return STATUS_SUCCESS;
 		}
+		case SystemExecutionState: {
+			PULONG ExecutionState = lpOutputBuffer;
+			FIXME("semi-stub: SystemExecutionState\n");
+			if (lpInputBuffer != NULL) {
+				return STATUS_INVALID_PARAMETER;
+			}
+			/* FIXME: The actual state should be the value set by SetThreadExecutionState which is not currently implemented. */
+			*ExecutionState = ES_USER_PRESENT;
+			return STATUS_SUCCESS;
+		}
 		default:
 			/* FIXME: Needed by .NET Framework */
 			WARN("Unimplemented NtPowerInformation action: %d\n", InformationLevel);
-- 
1.6.0.4