What could have caused this problem?

You have been assigned to maintain a Forms application that was designed by a developer who
has left the company.
The CV_Tools canvas contains several buttons. There is limited space on the canvas, but the first
button is not quite wide enough to display its complete label. In the Layout Editor, you widen the
button slightly and find that the width of all the buttons increases so that they now overlap each

other.
What could have caused this problem?

You have been assigned to maintain a Forms application that was designed by a developer who
has left the company.
The CV_Tools canvas contains several buttons. There is limited space on the canvas, but the first
button is not quite wide enough to display its complete label. In the Layout Editor, you widen the
button slightly and find that the width of all the buttons increases so that they now overlap each

other.
What could have caused this problem?

A.
The buttonsinherit their properties from the same property class.

B.
The buttons were created by dragging them from an object group.

C.
The buttons were created by using a Smart Class.

D.
All other buttons were subclassed from the first button.

E.
All other buttons were copied from the first button.

F.
The first button wassubclassedfrom another button.

G.
The first button was copied from another button.

Explanation:
D (not F):With subclassing you can make an exact copy, and then alter the
properties of some objects if desired. If you change the parent class, the changes also apply to the
properties of the subclassed object that you have not altered. However, any properties that you
override remain overridden. This provides a powerful object inheritance model.



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