Programmatically Collapsing a Widget

[Richard Boaz <riboaz xs4all nl>]

Hi,

I have a simple dialogue widget holding server names and the  
databases they individually serve.  In the lower half of the dialogue  
I have fields detailing the database information.   These details are  
viewable/hideable via MORE and LESS buttons.

My problem is that when the dialogue is first rendered, the detail  
information is not displayed (all details held within a single widget  
which is hidden), except that the size of the dialogue is the same as  
if it were displayed, i.e., a whole bunch of blank space at the  
bottom.  When hitting the MORE button, the details are displayed  
correctly, and when hitting LESS, are also hidden correctly.  But  
again, same as at startup, the overall dialogue does not collaps to  
the size of only what is on display.

Is there a programmatic way of collapsing a widget to the size of its  
contents which are not hidden?

thanks for any pointers,

richard boaz