These variables track the wmWindow.event_queue state, however they were used in a way that wasn't correct. - check_drag & check_click from wmWindow.eventstate were used to track the click/drag status of events handled in wmWindow.event_queue. - Event's in the queue read from wmEvent.check_drag. - Once a drag action was detected, wmWindow.eventstate.check_drag was disabled. Disabling drag in the event state would not change the drag state for values already in the event queue. Simplify logic by moving these values into the window, so there is one place these variables are tracked.