Can't pop file dialog

[9cxndy]

Because of mono/mono#20578, application running on wine-mono can't open a file dialog.

Maybe it makes sense to just bypass that check in WPF?

[madewokherd]

Based on MSDN it seems UserInteractive is supposed to tell you if you're in a service process. Mono has code for service processes, so it may not be difficult to implement it properly.

Failing that, I don't think the stub should return false, as 99% of the time it won't be in a service process.

[nsivov]

It is implemented in dotnet/runtime at https://github.com/dotnet/runtime/blob/2544c744d204c6ae0e20ba78c9cb8832a92091f3/src/libraries/System.Private.CoreLib/src/System/Environment.Windows.cs#L145. I don't know if it's worth duplicating in wine-mono, maybe flipping return value is enough.

[madewokherd]

We'd need a platform check, but I think it'd be fine to use that.

[madewokherd]

I tried changing the return value, and it still doesn't seem to work. I get some IFileDialog2_fnQueryInterface fixmes and the program stops with no window appearing.

[madewokherd]

It does call IFileDialog2::Show, but the dialog doesn't actually show up for some reason.

[9cxndy]

If I just remove the UserInteractive test, the dialog shows up for me. I was using Proton 5.13, don't know if they have any secret sauce.