-        bOk = ::GpiSetAttrs( M_BRUSHDATA->m_hBrush
-                            ,PRIM_AREA
-                            ,ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE |
-                             ABB_SET | ABB_SYMBOL
-                            ,ABB_REF_POINT
-                            ,&M_BRUSHDATA->m_vBundle
-                           );
+        bOk = (bool)::GpiSetAttrs( M_BRUSHDATA->m_hBrush
+                                  ,PRIM_AREA
+                                  ,ABB_COLOR | ABB_BACK_COLOR | ABB_MIX_MODE | ABB_BACK_MIX_MODE |
+                                   ABB_SET | ABB_SYMBOL | ABB_REF_POINT
+                                  ,ABB_SET | ABB_SYMBOL | ABB_REF_POINT
+                                  ,&M_BRUSHDATA->m_vBundle
+                                 );