Fix C++ build and add C++ source to compile

Author: RatinCN

Source/Include/KNSoft/NDK/Win32/API/msidle.inl

@@ -102,7 +102,7 @@ _Inline_EndIdleDetection(
         return FALSE;
     }
     _InterlockedExchangePointer((void* volatile*)&_Inline_MSIdle_g_pfnCallback, NULL);
-    Timer = _InterlockedExchangePointer((void* volatile*)&_Inline_MSIdle_g_pIdleTimer, NULL);
+    Timer = (PTP_TIMER)_InterlockedExchangePointer((void* volatile*)&_Inline_MSIdle_g_pIdleTimer, NULL);
     if (Timer != NULL)
     {
         _Inline_SetThreadpoolTimer(Timer, NULL, 0, 0);

Source/UnitTest/CppCompile.cpp

@@ -0,0 +1,5 @@
+/*
+ * Compile in C++
+ */
+
+#include "UnitTest.h"

Source/UnitTest/UnitTest.vcxproj

@@ -216,6 +216,7 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="Assembly.c" />
+    <ClCompile Include="CppCompile.cpp" />
     <ClCompile Include="Extension\MSVC.c" />
     <ClCompile Include="Main.c" />
     <ClCompile Include="NT\Bcd.c" />

Source/UnitTest/UnitTest.vcxproj.filters

@@ -18,6 +18,7 @@
     </ClCompile>
     <ClCompile Include="Assembly.c" />
     <ClCompile Include="RandGen.c" />
+    <ClCompile Include="CppCompile.cpp" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="NT">