src/java.desktop/windows/native/libawt/windows/awt_Toolkit.cpp

*** 1508,1518 ****
      /*
       * For MouseWheelEvents, hwnd must be changed to be the Component under
       * the mouse, not the Component with the input focus.
       */
  
!     if (msg.message == WM_MOUSEWHEEL) {
              //i.e. mouse is over client area for this window
              DWORD hWndForWheelProcess;
              DWORD hWndForWheelThread = ::GetWindowThreadProcessId(hWndForWheel, &hWndForWheelProcess);
              if (::GetCurrentProcessId() == hWndForWheelProcess) {
                  if (AwtToolkit::MainThread() == hWndForWheelThread) {
--- 1508,1518 ----
      /*
       * For MouseWheelEvents, hwnd must be changed to be the Component under
       * the mouse, not the Component with the input focus.
       */
  
!     if (msg.message == WM_MOUSEWHEEL || msg.message == WM_MOUSEHWHEEL) {
              //i.e. mouse is over client area for this window
              DWORD hWndForWheelProcess;
              DWORD hWndForWheelThread = ::GetWindowThreadProcessId(hWndForWheel, &hWndForWheelProcess);
              if (::GetCurrentProcessId() == hWndForWheelProcess) {
                  if (AwtToolkit::MainThread() == hWndForWheelThread) {