diff --git a/include/Spectre/Input/Mouse.h b/include/Spectre/Input/Mouse.h
index a560426..8d62feb 100644
--- a/include/Spectre/Input/Mouse.h
+++ b/include/Spectre/Input/Mouse.h
@@ -24,10 +24,13 @@ public :
 public :
 	virtual ~Mouse();
 
-	// Get mouse position
+	// Get the position in relative (focused window) coordinates.
+	// coordinates are relative to the window's top-left corner.
 	virtual Vector2f getPosition() const = 0;
 
-	//virtual Vector2i getPositionAbs() const = 0;
+	// Get the position in absolute (screen) coordinates.
+	// 0,0 is located at the screen's top-left corner.
+	virtual Vector2f getAbsPosition() const = 0;
 
 	virtual bool isButtonDown(Button button) const = 0;