Re: How to use PROP_TYPE_BUTTON?

[Le phan Anh <phanl csse monash edu au>]

What I am trying to do is:
I include a hidden field (not shown) in properties dialog, that field 
used to point to a keyword in my external BibTeX database.

When users double click on object, a prop dialog appears and shows 
various props including a button. Clicking on the button will invoke 
function call to readin BibTex file, search for the keyword, and a new 
dialog appears. That window contains information about the BibTeX entry, 
searched using the keyword. I wish to have multiple keys, pointing to 
various entries, just like UML class has mutiple atts. The difference is 
that I need to interact with my external files, and do NOT save 
information within Dia. I just attach keys to object.

Hope this make things a little bit clearer.
Thanks








> You should not update the original one; if you did, you'd slip under the
> undo mechanism (which, for stdprop objects, works using lists of property 
> values).
>
> If your object's state can be completely described using a list of property
> values (which, as a stdprop object, should be the case), then it should not
> matter that the specific object instance changed. What are you trying to do
> exactly? 
>
>         -- Cyrille
>
> --