vector graphics online reference

[Franco Vaccari <vaccari at geosun4 dot univ dot trieste dot it>]

I see in the code examples of most Vector Graphics classes that in 
the open event one should place
Canvas1.Backdrop.Objects=d //d is a group2D.

But why is this needed if anyway you have to put in the paint event 
of the canvas
g.drawobject d,30,30

???


All examples do work even if one comment the 
Canvas1.Backdrop.Objects=d statement (and you cannot avoid putting 
the code in the paint event)
See for instance the OvalShape Class

Franco


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Franco Vaccari
INGV c/o Univ. di Trieste - Dip. di Scienze della Terra
v. Weiss 4, I-34127 Trieste, Italy
phone: ++39-040-5582119
fax:   ++39-040-5582111
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