win32u: Propagate WM_MOUSEHWHEEL to the parent window in DefWindowProc().

8a9c955b · Brendan Shanks · Alexandre Julliard · 38b0a400 · 8a9c955b
Commit 8a9c955b authored May 19, 2023 by Brendan Shanks Committed by Alexandre Julliard May 23, 2023
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defwnd.c dlls/win32u/defwnd.c +2 -1

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--- a/dlls/win32u/defwnd.c
+++ b/dlls/win32u/defwnd.c
@@ -2562,8 +2562,9 @@ LRESULT default_window_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, 
        break;

    case WM_MOUSEWHEEL:
+    case WM_MOUSEHWHEEL:
        if (get_window_long( hwnd, GWL_STYLE ) & WS_CHILD)
-            result = send_message( get_parent( hwnd ), WM_MOUSEWHEEL, wparam, lparam );
+            result = send_message( get_parent( hwnd ), msg, wparam, lparam );
        break;

    case WM_ERASEBKGND: