Added WC_SCROLLBAR.
diff --git a/include/commctrl.h b/include/commctrl.h
index b458fc3..2fbdd22 100644
--- a/include/commctrl.h
+++ b/include/commctrl.h
@@ -4919,6 +4919,20 @@
#endif
#define WC_LISTBOX WINELIB_NAME_AW(WC_LISTBOX)
+/**************************************************************************
+ * Scroll bar control
+ */
+
+#define WC_SCROLLBARA "ScrollBar"
+#if defined(__GNUC__)
+# define WC_SCROLLBARW (const WCHAR []){ 'S','c','r','o','l','l','B','a','r',0 }
+#elif defined(_MSC_VER)
+# define WC_SCROLLBARW L"ScrollBar"
+#else
+static const WCHAR WC_SCROLLBARW[] = { 'S','c','r','o','l','l','B','a','r',0 };
+#endif
+#define WC_SCROLLBAR WINELIB_NAME_AW(WC_SCROLLBAR)
+
#ifdef __cplusplus
}
#endif
