--- /dev/null
+#ifndef MSP_GLTK_HSLIDER_H_
+#define MSP_GLTK_HSLIDER_H_
+
+#include "slider.h"
+
+namespace Msp {
+namespace GLtk {
+
+class HSlider: public Slider
+{
+public:
+ HSlider(const Resources &);
+private:
+ void render_part(const Part &) const;
+ void on_button_press(int, int, unsigned);
+ void on_button_release(int, int, unsigned);
+ void pointer_motion(int, int);
+};
+
+} // namespace GLtk
+} // namespace Msp
+
+#endif