how to take a screenshot of transient dialogs?

[Alan Pope]

On 3 October 2010 10:53, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
>  typically, dialogs like that capture the input so that you can't do
> anything else until you dismiss them, so the standard techniques for
> doing screenshots don't work.
>

Under Applications -> Accessories there is a tool for taking
screenshots. One of the options lets you take a screenshot after a
delay. So select that, have a 5 second delay, then go and bring up the
menu that you wanted to screenshot and wait for it to take.

Al.