Fixed the BookSourceCode samples on Mac

BookSourceCode/XNAGameDevelopmentbyExampleCode/AsteroidBeltAssault/AsteroidBeltAssault.MacOS.csproj

@@ -16,7 +16,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
+    <DefineConstants>DEBUG;MONOMAC</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
@@ -36,6 +36,7 @@
     <CreatePackage>false</CreatePackage>
     <EnablePackageSigning>false</EnablePackageSigning>
     <IncludeMonoRuntime>false</IncludeMonoRuntime>
+    <DefineConstants>MONOMAC</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />

BookSourceCode/XNAGameDevelopmentbyExampleCode/FloodControl/FloodControl.MacOS.csproj

@@ -16,7 +16,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
+    <DefineConstants>DEBUG;MONOMAC</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
@@ -36,6 +36,7 @@
     <CreatePackage>false</CreatePackage>
     <EnablePackageSigning>false</EnablePackageSigning>
     <IncludeMonoRuntime>false</IncludeMonoRuntime>
+    <DefineConstants>MONOMAC</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />

BookSourceCode/XNAGameDevelopmentbyExampleCode/GemstoneHunter/GemstoneHunter.MacOS.csproj

@@ -16,7 +16,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
+    <DefineConstants>DEBUG;MONOMAC</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
@@ -36,6 +36,7 @@
     <CreatePackage>false</CreatePackage>
     <EnablePackageSigning>false</EnablePackageSigning>
     <IncludeMonoRuntime>false</IncludeMonoRuntime>
+    <DefineConstants>MONOMAC</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />

BookSourceCode/XNAGameDevelopmentbyExampleCode/RobotRampage/Program.cs

@@ -44,9 +44,8 @@ namespace Robot_Rampage
 		
 		public override void FinishedLaunching (MonoMac.Foundation.NSObject notification)
 		{
-			using (Game1 game = new Game1 ()) {
-				game.Run ();
-			}
+			Game1 game = new Game1 ();
+			game.Run ();
 		}
 		
 		public override bool ApplicationShouldTerminateAfterLastWindowClosed (NSApplication sender)

BookSourceCode/XNAGameDevelopmentbyExampleCode/RobotRampage/RobotRampage.MacOS.csproj

@@ -16,7 +16,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
+    <DefineConstants>DEBUG;MONOMAC</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ConsolePause>false</ConsolePause>
@@ -36,6 +36,7 @@
     <CreatePackage>false</CreatePackage>
     <EnablePackageSigning>false</EnablePackageSigning>
     <IncludeMonoRuntime>false</IncludeMonoRuntime>
+    <DefineConstants>MONOMAC</DefineConstants>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />