Update the actual tool tip used by Qt and not just the internal variable when SetTip() is called. Also implement wxToolTip::SetWindow(). Closes https://github.com/wxWidgets/wxWidgets/pull/1175
Update the actual tool tip used by Qt and not just the internal variable when SetTip() is called. Also implement wxToolTip::SetWindow(). Closes https://github.com/wxWidgets/wxWidgets/pull/1175