_slider->Bind (wxEVT_SCROLL_PAGEUP, boost::bind(&Controls::slider_moved, this, true));
_slider->Bind (wxEVT_SCROLL_PAGEDOWN, boost::bind(&Controls::slider_moved, this, true));
_slider->Bind (wxEVT_SCROLL_CHANGED, boost::bind(&Controls::slider_released, this));
+#ifdef DCPOMATIC_OSX
+ /* _CHANGED is not received on OS X (at least, not when the
+ slider is dragged), so use this instead. Perhaps all
+ platforms could just use _THUMBRELEASE.
+ */
+ _slider->Bind (wxEVT_SCROLL_THUMBRELEASE, boost::bind(&Controls::slider_released, this));
+#endif
_rewind_button->Bind (wxEVT_LEFT_DOWN, boost::bind(&Controls::rewind_clicked, this, _1));
_back_button->Bind (wxEVT_LEFT_DOWN, boost::bind(&Controls::back_clicked, this, _1));
_forward_button->Bind (wxEVT_LEFT_DOWN, boost::bind(&Controls::forward_clicked, this, _1));