Disable screensaver/etc when a game is running

Core/Console.cpp

@@ -11,6 +11,7 @@
 #include "EmulationSettings.h"
 #include "../Utilities/Timer.h"
 #include "../Utilities/FolderUtilities.h"
+#include "../Utilities/PlatformUtilities.h"
 #include "HdPpu.h"
 #include "NsfPpu.h"
 #include "SoundMixer.h"
@@ -268,6 +269,8 @@ void Console::Run()
 	targetTime = GetFrameDelay();
 
 	VideoDecoder::GetInstance()->StartThread();
+
+	PlatformUtilities::DisableScreensaver();
 		
 	while(true) { 
 		try {
@@ -307,13 +310,15 @@ void Console::Run()
 				
 				//Prevent audio from looping endlessly while game is paused
 				SoundMixer::StopAudio();
-
+				
+				PlatformUtilities::EnableScreensaver();
 				while(paused) {
 					//Sleep until emulation is resumed
 					std::this_thread::sleep_for(std::chrono::duration<int, std::milli>(100));
 					paused = EmulationSettings::IsPaused();
 				}
-				_runLock.Acquire();
+				PlatformUtilities::DisableScreensaver();
+				_runLock.Acquire();								
 				MessageManager::SendNotification(ConsoleNotificationType::GameResumed);
 			}
 
@@ -341,6 +346,7 @@ void Console::Run()
 	SoundMixer::StopAudio();
 	Movie::Stop();
 	SoundMixer::StopRecording();
+	PlatformUtilities::EnableScreensaver();
 
 	VideoDecoder::GetInstance()->StopThread();
 

Utilities/PlatformUtilities.cpp

@@ -0,0 +1,22 @@
+#include "stdafx.h"
+#include "PlatformUtilities.h"
+
+#ifdef WIN32
+#include <Windows.h>
+#endif
+
+void PlatformUtilities::DisableScreensaver()
+{
+	//Prevent screensaver/etc from starting while using the emulator
+	//DirectInput devices apparently do not always count as user input
+	#ifdef WIN32
+	SetThreadExecutionState(ES_SYSTEM_REQUIRED | ES_DISPLAY_REQUIRED | ES_CONTINUOUS);
+	#endif // WIN32
+}
+
+void PlatformUtilities::EnableScreensaver()
+{
+	#ifdef WIN32
+	SetThreadExecutionState(ES_CONTINUOUS);
+	#endif // WIN32
+}

Utilities/PlatformUtilities.h

@@ -0,0 +1,9 @@
+#pragma once
+#include "stdafx.h"
+
+class PlatformUtilities
+{
+public:
+	static void DisableScreensaver();
+	static void EnableScreensaver();
+};

Utilities/Utilities.vcxproj

@@ -336,6 +336,7 @@
     <ClInclude Include="nes_ntsc.h" />
     <ClInclude Include="nes_ntsc_config.h" />
     <ClInclude Include="nes_ntsc_impl.h" />
+    <ClInclude Include="PlatformUtilities.h" />
     <ClInclude Include="PNGHelper.h" />
     <ClInclude Include="Scale2x\scale2x.h" />
     <ClInclude Include="Scale2x\scale3x.h" />
@@ -369,6 +370,7 @@
     <ClCompile Include="md5.cpp" />
     <ClCompile Include="miniz.cpp" />
     <ClCompile Include="nes_ntsc.cpp" />
+    <ClCompile Include="PlatformUtilities.cpp" />
     <ClCompile Include="PNGHelper.cpp" />
     <ClCompile Include="AutoResetEvent.cpp" />
     <ClCompile Include="Scale2x\scale2x.cpp" />

Utilities/Utilities.vcxproj.filters

@@ -116,6 +116,9 @@
     <ClInclude Include="ArchiveReader.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="PlatformUtilities.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
@@ -208,5 +211,8 @@
     <ClCompile Include="ArchiveReader.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="PlatformUtilities.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>