src/java.desktop/windows/native/libawt/windows/awt_Component.h

@@ -520,11 +520,11 @@
     virtual MsgRouting WmMouseDown(UINT flags, int x, int y, int button);
     virtual MsgRouting WmMouseUp(UINT flags, int x, int y, int button);
     virtual MsgRouting WmMouseMove(UINT flags, int x, int y);
     virtual MsgRouting WmMouseExit(UINT flags, int x, int y);
     virtual MsgRouting WmMouseWheel(UINT flags, int x, int y,
-                                    int wheelRotation);
+                                    int wheelRotation, BOOL isHorizontal);
     virtual MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button);
     virtual MsgRouting WmNcMouseUp(WPARAM hitTest, int x, int y, int button);
     virtual MsgRouting WmWindowPosChanging(LPARAM windowPos);
     virtual MsgRouting WmWindowPosChanged(LPARAM windowPos);
 

@@ -822,11 +822,12 @@
     int windowMoveLockPosY;
     int windowMoveLockPosCX;
     int windowMoveLockPosCY;
 
     // 6524352: support finer-resolution
-    int m_wheelRotationAmount;
+    int m_wheelRotationAmountX;
+    int m_wheelRotationAmountY;
 
     BOOL deadKeyActive;
 
     /*
      * The association list of children's IDs and corresponding components.