diff -r b25f54b51d76 -r d6baaa93f7be ui/qt/toolbar.cpp
--- a/ui/qt/toolbar.cpp	Sun Jul 13 11:02:45 2025 +0200
+++ b/ui/qt/toolbar.cpp	Sun Jul 13 11:38:27 2025 +0200
@@ -104,6 +104,7 @@
     event->intval = action->isChecked();
     if(wrapper->var) {
         event->eventdata = wrapper->var->value;
+        event->eventdatatype = UI_EVENT_DATA_INTEGER_VALUE;
     }
 }