On Sun, 2017-09-03 at 16:54 +0100, Emmanuele Bassi wrote: > You're blocking the toolkit's main loop, When I add a background function with g_idle_add() I am blocking the GTK main loop? Well I just wanted to avoid that. But even without use of g_idle_add() the animation stops, when I move the cursor out of the window and back, see my first example. So there is a GTK bug. My initial chess GUI was this: https://github.com/StefanSalewski/nim-chess3/blob/master/board.nim I know that it was really ugly, I was told that while gtk3.eventsPending(): discard gtk3.mainIteration() is really bad design. But that first draft was basically only a test of the low level Nim GTK wrapper, and it was working six months ago. It is still working, but mouse cursor is not animated any longer. For user input, I was going to use a basic state maschiene -- state advances by each user mouse click. Response of computer is more difficult, I was going to use g_idle_add() to run computer chess engine in the background. But maybe I should use a own task/process? (Which may be a problem again, as GTK is single threaded?) Unfortunately, for such use cases there are nearly no GTK example available. Have done some Goggle search already... _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
