diff --git a/source/Platform/Unix/X11Mouse.cpp b/source/Platform/Unix/X11Mouse.cpp
index c6c846d..850eec0 100644
--- a/source/Platform/Unix/X11Mouse.cpp
+++ b/source/Platform/Unix/X11Mouse.cpp
@@ -1,6 +1,7 @@
 
 #include <Spectre/System/Event.h>
 #include <Spectre/System/Log.h>
+#include "X11Display.h"
 #include "X11Mouse.h"
 
 #include "X11SharedDisplay.h"
@@ -23,17 +24,17 @@ X11Mouse::~X11Mouse()
 void X11Mouse::init()
 {
 	m_disp = XGetDisplay();
+	updateFocusedWindow();
 }
 
 Vector2f X11Mouse::getPosition() const
 {
-	// TODO: Translate to window.
 	return m_position;
 }
 
 Vector2f X11Mouse::getAbsPosition() const
 {
-	return m_position;
+	return m_abs_position;
 }
 
 bool X11Mouse::isButtonDown(Mouse::Button button) const
@@ -58,15 +59,30 @@ void X11Mouse::update(InputModule *input)
 	::Window root, child;
 	int rx, ry, x = 0, y = 0;
 
+	updateFocusedWindow();
+
 	// Query position and button state.
-	XQueryPointer(m_disp, ::XDefaultRootWindow(m_disp),
+	XQueryPointer(m_disp,
+		m_win ? m_win : ::XDefaultRootWindow(m_disp),
 		&root, &child,
 		&rx, &ry,
 		&x, &y, &m_btn_state);
 
-	// Update position
-	m_position.x = x;
-	m_position.y = y;
+	// Update abs position (relative to root).
+	m_abs_position.x = rx;
+	m_abs_position.y = ry;
+
+	// Update window position.
+	if (m_win) {
+		m_position.x = x;
+		m_position.y = y;
+	}
+}
+
+void X11Mouse::updateFocusedWindow()
+{
+	X11Display *focus = X11Display::getFocused();
+	m_win = focus ? (::Window) focus->getHandle() : 0;
 }
 
 bool X11Mouse::handleMessage(XEvent* xevent, Event& event)
diff --git a/source/Platform/Unix/X11Mouse.h b/source/Platform/Unix/X11Mouse.h
index 84c326c..26717c2 100644
--- a/source/Platform/Unix/X11Mouse.h
+++ b/source/Platform/Unix/X11Mouse.h
@@ -29,12 +29,16 @@ protected :
 
 	virtual void update(InputModule *input);
 
+	void updateFocusedWindow();
+
 protected :
 	::Display* m_disp;
-	::Window m_win;
+	::Window m_win; // Focused window.
 
 	Vector2f m_position;
 
+	Vector2f m_abs_position;
+
 	unsigned int m_btn_state;
 };