+
+ // The size of the client window can't be negative but ::GetClientRect()
+ // can return negative size for an extremely small (1x1) window with
+ // borders so ensure that we correct it here as having negative sizes is
+ // completely unexpected.
+ if ( x && *x < 0 )
+ *x = 0;
+ if ( y && *y < 0 )
+ *y = 0;