Changing Script editor through code different to Editor UI

have an interesting problem / observation

If I add a new code editor through script by setting the "kScriptsDefaultApp" and "kScriptEditorArgs" Editor properties, it behaves differently that when you set it through editor ui.

For example:
If I setup VSCode through the editor pointing to:
"C:\Program Files (x86)\Microsoft VS Code\code.exe"

Then this runs the program direct without issue.

If however I do (cut short for simplicity)
EditorPrefs.SetString("kScriptsDefaultApp", "C:\Program Files (x86)\Microsoft VS Code\code.exe");

This causes a new process to be called and then the app is launched.

Any ideas why or how you can configure it to just run the exe instead of starting a new commandline process to start it?

 

I was trying to accomplish the same thing. Unity opens scenes and prefabs in Visual Studio (as text) when I select it as the External Script Editor. When I solve that by selecting "Open by file extension", it doesn't generate a correct project (reverts to a non-Unity app, e.g. "Attach" becomes "Run") and double-clicking an error in the console doesn't jump to the correct line anymore.

Anyway, I was trying to make a tool button that easily switches between the 2 states. Sad to hear it's probably not going to be easy either. Maybe 6.5 years later it "just works"?

 

Yes, it works now!

Code (CSharp):

1.         EditorGUILayout.BeginHorizontal();
2.         bool isOpenByExtension = EditorPrefs.GetString("kScriptsDefaultApp", "").IsNullOrEmpty();
3.         GUILayout.Label(isOpenByExtension ? "Now using Extensions" : "Now using Visual Studio");
4.         if (GUILayout.Button(isOpenByExtension ? "Use Visual Studio" : "Use Extensions"))
5.         {
6.             EditorPrefs.SetString("kScriptsDefaultApp", isOpenByExtension ? "C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/Common7/IDE/devenv.exe" : "");
7.         }
8.         EditorGUILayout.EndHorizontal();
9.