I want change shape.Style.FillStyle after click on a toolbar in my application.
I will change shape.Style.FillStyle in some function and:

* when the window with the nDrawingView is maximized, the shape.Style.FillStyle is changed correctly

* but when the window is not maximized the shape.Style.FillStyle is changed only after the mouse cursor is in the window with nDrawingView.

Where is the problem?