Allow Sourcetree to be used in RemoteApp

[Chad Robinson]

So far, SourceTree is the only app I can't open from a RemoteApp Session. 

I have several ideas on how this might not work:

1. you are installing via the user profile path.
2. You have a exe file that redirects to the appropriate version of the application. 

Even if you can RemoteApp into a machine where SourceTree is open and you try to open sourceTree through alternative means, it does not work. SourceTree will hang.

[Chad Robinson]

This seems to be around Sourcetree implementing the MS.Internal.AppModel.ITaskbarList. 

I found the following details on this issue:

https://stackoverflow.com/questions/35185388/itaskbar-hrinit-method-throws-exception-under-remoteapp

https://stackoverflow.com/questions/54014298/how-to-avoid-exception-setting-window-taskbariteminfo-in-rare-situations

[Chad Robinson]

Here is the full stackstrace:

ERROR [2020-10-23 20:41:03,401] [1] [SourceTree.Analytics.Crash.BugSplat.CrashAnalyticsService] [Log] - DispatcherUnhandledExceptionHandler for [Sourcetree, 3.3.8.3848] called with [System.Windows.Threading.Dispatcher, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs]
System.NotImplementedException: The method or operation is not implemented.
at MS.Internal.AppModel.ITaskbarList.HrInit()
at System.Windows.Window.ApplyTaskbarItemInfo()
at System.Windows.Window.WindowFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

[Chad Robinson]

Here is an open issue on Github that describes this exact issue:

https://github.com/dotnet/wpf/issues/2377

[Chad Robinson]

here is a fix that DevExpress implemented:

https://github.com/DevExpress/DevExpress.Mvvm.Free/blob/d8f957007cd409dd7e678876640b666fcf0c6467/DevExpress.Mvvm.UI/Services/TaskbarButtonService/Native/TaskbarInfoApplicator.cs#L11