Method GetChild

src/RealtimeEffectPanel.cpp:404–419

      }

      wxAccStatus GetChild(int childId, wxAccessible** child) override
      {
         if(childId == wxACC_SELF)
            *child = this;
         else
         {
            const auto window = GetWindow();
            const auto& children = window->GetChildren();
            const auto childIndex = childId - 1;
            if(childIndex < children.size())
               *child = children[childIndex]->GetAccessible();
            else
               *child = nullptr;
         }
         return wxACC_OK;
      }

      wxAccStatus GetRole(int childId, wxAccRole* role) override
      {