How to send ownerTid into a parallel foreach loop?

[adnan338]

On Saturday, 27 June 2020 at 07:31:56 UTC, Kagamin wrote:
> std.concurrency is for noninteractive appications, the approach 
> with gui timer was the correct one.

Thank you. That works but my progress bar is sometimes getting 
stuck because of a possible data race.
See 
https://forum.dlang.org/post/gacweulvbyorksetidcj@forum.dlang.org

Today I discovered Glib Idle so I was trying that out.