On Nov 4, 11:36*pm, Thomas Lehmann wrote:
> Hi,
>
> Could someone please explain how to implement this:
>
> - I have a push button and a form with some content.
> - The form is created but not shown - initially.
> - When pressing the button the form should be shown below
> * the button. Next time the form will be hidden. a.s.o.
>
> The XmNallowShellResize of the dialog is set to true.
>
> Do I have to relayout?
> Actually I have done the layout when creating the widgets!
>

You need an additional manager (maybe a another Form):
toplevelshell
mainform
button
form2 with other content (top attached to button)

Initially, the mainform and button are managed, form2 is unmanaged
Register an XmNactivateCallback on the button.
In the callback, keep track of whether corm2 is managed or unmanaged
and unmanage or manage it.

Maybe a better way is to use a toggle button instead of a pushbutton.
--
Fred Kleinschmidt