Loaded the package on solution load.

Author: jjonescz

src/GtmExtension/GtmPackage.cs

@@ -1,16 +1,10 @@
-using System;
-using System.ComponentModel.Design;
-using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
-using System.Globalization;
-using System.Runtime.InteropServices;
-using System.Threading;
-using System.Threading.Tasks;
 using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.OLE.Interop;
 using Microsoft.VisualStudio.Shell;
 using Microsoft.VisualStudio.Shell.Interop;
-using Microsoft.Win32;
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.InteropServices;
+using System.Threading;
 using Task = System.Threading.Tasks.Task;
 
 namespace GtmExtension
@@ -36,6 +30,7 @@ namespace GtmExtension
     [InstalledProductRegistration("#110", "#112", "1.0", IconResourceID = 400)] // Info on this package for Help/About
     [Guid(GtmPackage.PackageGuidString)]
     [SuppressMessage("StyleCop.CSharp.DocumentationRules", "SA1650:ElementDocumentationMustBeSpelledCorrectly", Justification = "pkgdef, VS and vsixmanifest are valid VS terms")]
+    [ProvideAutoLoad(UIContextGuids80.SolutionExists, PackageAutoLoadFlags.BackgroundLoad)] // Load the extension when a solution is open.
     public sealed class GtmPackage : AsyncPackage
     {
         /// <summary>
@@ -68,6 +63,14 @@ protected override async Task InitializeAsync(CancellationToken cancellationToke
             // When initialized asynchronously, the current thread may be a background thread at this point.
             // Do any initialization that requires the UI thread after switching to the UI thread.
             await this.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
+
+            // Show test message box.
+            var uiShell = (IVsUIShell)await GetServiceAsync(typeof(SVsUIShell));
+            if (uiShell == null) { return; }
+            Guid clsid = Guid.Empty;
+            int result;
+            ErrorHandler.ThrowOnFailure(uiShell.ShowMessageBox(0, ref clsid, "GtmPackage", "Initializing.", string.Empty, 0,
+                OLEMSGBUTTON.OLEMSGBUTTON_OK, OLEMSGDEFBUTTON.OLEMSGDEFBUTTON_FIRST, OLEMSGICON.OLEMSGICON_INFO, 0, out result));
         }
 
         #endregion