1 files changed, 11 insertions, 0 deletions
diff --git a/src/lib/platform/MSWindowsHook.cpp b/src/lib/platform/MSWindowsHook.cpp
index 2d7845a..b9b9740 100644
--- a/src/lib/platform/MSWindowsHook.cpp
+++ b/src/lib/platform/MSWindowsHook.cpp
@@ -25,6 +25,10 @@
 #include "common/DataDirectories.h"
 #include "base/Log.h"
 
+#ifndef WM_MOUSEHWHEEL
+#define WM_MOUSEHWHEEL 0x020E
+#endif
+
  //
  // debugging compile flag.  when not zero the server doesn't grab
  // the keyboard when the mouse leaves the server screen.  this
@@ -473,6 +477,13 @@ mouseHookHandler(WPARAM wParam, SInt32 x, SInt32 y, SInt32 data)
         }
         return (g_mode == kHOOK_RELAY_EVENTS);
 
+    case WM_MOUSEHWHEEL:
+        if (g_mode == kHOOK_RELAY_EVENTS) {
+            // relay event
+            PostThreadMessage(g_threadID, BARRIER_MSG_MOUSE_WHEEL, 0, data);
+        }
+        return (g_mode == kHOOK_RELAY_EVENTS);
+
     case WM_NCMOUSEMOVE:
     case WM_MOUSEMOVE:
         if (g_mode == kHOOK_RELAY_EVENTS) {