How to spawn a thread within a GtkD button event handler

Ferhat Kurtulmuş aferust at
Thu Oct 8 19:57:23 UTC 2020

On Thursday, 8 October 2020 at 19:53:26 UTC, Alaindevos wrote:
> I created blindly a thread and this allowed to do stuff in 
> background.
> But when i passed the mainwindow as argument and did some stuff 
> it resulted in,
> [xcb] Unknown sequence number while processing queue
> [xcb] Most likely this is a multi-threaded client and 
> XInitThreads has not been called
> [xcb] Aborting, sorry about that.
> Assertion failed: (!xcb_xlib_threads_sequence_lost), function 
> poll_for_event, file xcb_io.c, line 263.
> Program exited with code -6

I put a minimal example here:

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