Yesterday I was looking again on the source code of my Nim editor https://github.com/ngtk3/NEd because I have the feeling that there may hide still a bug somewhere... As I saw the line buffer.handlerID = gSignalConnect(buffer, "notify::cursor-position", gCallback(onCursorMoved), win) I remembered that I tried once to reduce the number of events. When I remember correctly, signal "notify::cursor-position" buffers the events. So when the connected function can process signals only slow, the events fill the buffer and the function is called still when cursor is alredy at rest for some time. What I tried or wanted was processing only the most recent cursor position and discarding all other events in the queue. I think I found no working GTK solution at that time. It seems that I tried something like obj.signalHandlerBlock(buffer.handlerID) # this will crash for fast backspace, even with gSignalConnectAfter() while gtk3.eventsPending(): echo "mainIteration"; discard gtk3.mainIteration() obj.signalHandlerUnblock(buffer.handlerID) which was not working and I found no other solution. That was not a big problem for that case, because I processed the events in a different thread, passing each event through a channel to that thread, and it was easy to discard all but the most recent event in that channel. But I still wonder if GTK itseld does not allow such type of filtering. _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
