TkPointerEvent ENTERED
  eventPtr->type is 4
TkPointerEvent LEFT, eventPtr->type is 4, !appGrabbed

TkPointerEvent ENTERED
  eventPtr->type is 7
  EnterNotify, not a GENERATED_GRAB_EVENT_MAGIC, dispPtr->serverWinPtr set to winPtr = 0452E3A0

TkPointerEvent ENTERED
  eventPtr->type is 7
  EnterNotify, not a GENERATED_GRAB_EVENT_MAGIC, dispPtr->serverWinPtr set to winPtr = 00523B90

TkPointerEvent ENTERED
  eventPtr->type is 6
  MotionNotify, TkChangeEventWindow is NOT called

TkPointerEvent ENTERED
  eventPtr->type is 7
  EnterNotify || LeaveNotify, this is a GENERATED_GRAB_EVENT_MAGIC

TkPointerEvent ENTERED
  eventPtr->type is 8
  LeaveNotify & TK_TOP_HIERARCHY, not a GENERATED_GRAB_EVENT_MAGIC, dispPtr->serverWinPtr set to NULL

TkPointerEvent ENTERED
  eventPtr->type is 6
TkPointerEvent LEFT, eventPtr->type is 6, !appGrabbed