diff --git a/slider.go b/slider.go
index fff4219..f2ebf32 100644
--- a/slider.go
+++ b/slider.go
@@ -15,7 +15,7 @@ type Slider struct {
 	dragOffset image.Point
 
 	on struct {
-		valueChange event.FuncBroadcaster
+		slide event.FuncBroadcaster
 	}
 }
 
@@ -71,7 +71,6 @@ func (this *Slider) SetValue (value float64) {
 	if value == this.layout.value { return }
 	this.layout.value = value
 	this.SetLayout(this.layout)
-	this.on.valueChange.Broadcast()
 }
 
 // Value returns the value of the slider between 0 and 1.
@@ -79,10 +78,10 @@ func (this *Slider) Value () float64 {
 	return this.layout.value
 }
 
-// OnValueChange specifies a function to be called when the slider's value
-// changes.
-func (this *Slider) OnValueChange (callback func ()) event.Cookie {
-	return this.on.valueChange.Connect(callback)
+// OnValueChange specifies a function to be called when the user moves the
+// slider.
+func (this *Slider) OnSlide (callback func ()) event.Cookie {
+	return this.on.slide.Connect(callback)
 }
 
 func (this *Slider) handleKeyDown (key input.Key, numpad bool) {
@@ -139,14 +138,18 @@ func (this *Slider) handleMouseDown (button input.Button) {
 	case input.ButtonMiddle:
 		if above {
 			this.SetValue(0)
+			this.on.slide.Broadcast()
 		} else {
 			this.SetValue(1)
+			this.on.slide.Broadcast()
 		}
 	case input.ButtonRight:
 		if above {
 			this.SetValue(this.Value() - 0.05)
+			this.on.slide.Broadcast()
 		} else {
 			this.SetValue(this.Value() + 0.05)
+			this.on.slide.Broadcast()
 		}
 	}
 }
@@ -176,6 +179,7 @@ func (this *Slider) drag () {
 			float64(pointer.X) /
 			float64(gutter.Dx() - handle.Dx()))
 	}
+	this.on.slide.Broadcast()
 }
 
 func (this *Slider) fallbackDragOffset () image.Point {