[WIN32K]

Add missing locking in BASEOBJ::LockShared. Fixes theming regression.
CORE-9535 #resolve

svn path=/trunk/; revision=67282

reactos/win32ss/gdi/ntgdi/baseobj.hpp

@@ -52,7 +52,8 @@ protected:
         GDILOOBJTYPE loobjtype,
         OWNER owner)
     {
-        return 0;
+        /// FIXME: should check owner!
+        return reinterpret_cast<CBASEOBJECT*>(GDIOBJ_ShareLockObj(hobj, loobjtype));
     }
 
     VOID