TailBlazer
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RolandPheasant
Drag and Drop has no effect
When I attempt to drag and drop a file onto Tail Blazer end up with the :no_entry_sign: cursor. I've tried a variety of file types and the results have been the same on all of them.
Running Windows 10 and I do have .NET 4.6.1 installed.
Can you open a file by pressing the open file button (one of the buttons on the title bar)
Yes! I can path to it and everything performs as expected once open, it's only the drag and drop functionality that doesn't work.
This is odd and I have never seen it before. Also drag and drop is code that was writen in week 1 of the project so I am perplexed.
Another diagnostic point is that I'm using a Surface Book, if the presence of touch + pen input interferes with your drag and drop in some way?
Could it be that you are running Tail Blazer as Administrator and the file is owned by someone else, or vice versa? I observe the same behaviour, navigating to the file works but drag and drop does not when this is the case.
Yes! If I launch Tail Blazer from an Administrator cmd prompt Drag and Drop doesn't work but non-Administrator did allow me to drag and drop.
This article is quite old but seems to explain the the issue. http://blogs.msdn.com/b/patricka/archive/2010/01/28/q-why-doesn-t-drag-and-drop-work-when-my-application-is-running-elevated-a-mandatory-integrity-control-and-uipi.aspx
It seems to be a security feature but you can explicitly opt-in to allowing specific messages through from lower-level processes.
@zolrath @alexandernyquist interesting. I tried running TB as an administrator and sure enough drag and drop failed. As stated, I could use ChangeWindowsMessageFilterEx but that is not recommended and frankly is sucks. Need to have a think about this one...
I also have this. Found this bug report with the workaround, everything works here as well when I don't run as admin.
