This is the exact issue I'm running into right now with dear ImGui. There is no event propagation. You can either transfer control over to ImGui, or you retain

This is the exact issue I'm running into right now with dear ImGui. There is no event propagation. You can either transfer control over to ImGui, or you retain control. In Qt it would be possible for the focus widget to not accept events, so they would bubble up the hierarchy. Considering how the hierarchy is tied to the callstack, this seems difficult to achieve with an ImGui.