hw/xwin: Handle WM_MOUSEHWHEEL

Handle WM_MOUSEHWHEEL tilt wheel messages, similarly to WM_MOUSEWHEEL scroll
wheel messages, to generate X button 6 and 7 presses and releases.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>

1 files changed, 12 insertions, 0 deletions

diff --git a/hw/xwin/winmultiwindowwndproc.c b/hw/xwin/winmultiwindowwndproc.c
index da7914ab7..9292e73ca 100644
--- a/hw/xwin/winmultiwindowwndproc.c
+++ b/hw/xwin/winmultiwindowwndproc.c
@@ -684,6 +684,18 @@ winTopLevelWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
         else
             break;
 
+    case WM_MOUSEHWHEEL:
+        if (SendMessage
+            (hwnd, WM_NCHITTEST, 0,
+             MAKELONG(GET_X_LPARAM(lParam),
+                      GET_Y_LPARAM(lParam))) == HTCLIENT) {
+            /* Pass the message to the root window */
+            SendMessage(hwndScreen, message, wParam, lParam);
+            return 0;
+        }
+        else
+            break;
+
     case WM_SETFOCUS:
         if (s_pScreenPriv == NULL || s_pScreenInfo->fIgnoreInput)
             break;