Vilian,
It seems as the problem is that the border is being painted on the container window:
We need to review CtrlDrawFocus() source code.
@ 10,20 GET oGet VAR cVar PICTURE "@!" DESIGN SIZE 20,60 PIXEL OF oDlgEdit UPDATE
@ 10,20 GET oGet VAR cVar PICTURE "@!" DESIGN SIZE 20,60 PIXEL OF oDlgEdit UPDATE