Designer: now using IMAGE_SUBSYSTEM_WINDOWS_GUI

src/Windows/Perspex.Designer/Comm/ProcessHost.cs

@@ -98,7 +98,7 @@ namespace Perspex.Designer.Comm
             var exe = typeof (ProcessHost).Assembly.GetModules()[0].FullyQualifiedName;
             _proc = new Process()
             {
-                StartInfo = new ProcessStartInfo(exe)
+                StartInfo = new ProcessStartInfo(exe, "--hosted")
                 {
                     UseShellExecute = false,
                     RedirectStandardInput = true,

src/Windows/Perspex.Designer/Perspex.Designer.csproj

@@ -5,7 +5,7 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{EC42600F-049B-43FF-AED1-8314D61B2749}</ProjectGuid>
-    <OutputType>Exe</OutputType>
+    <OutputType>WinExe</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Perspex.Designer</RootNamespace>
     <AssemblyName>Perspex.Designer</AssemblyName>
@@ -42,6 +42,9 @@
   <PropertyGroup>
     <AssemblyOriginatorKeyFile>perspex.designer.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />

src/Windows/Perspex.Designer/Program.cs

@@ -18,7 +18,7 @@ namespace Perspex.Designer
         [STAThread]
         static void Main(string[] args)
         {
-            if (!Console.IsInputRedirected || !Console.IsOutputRedirected)
+            if (!args.Contains("--hosted"))
                 DemoMain(args);
             else
                 HostedMain();