warning dialog box

[Bill Tangren]

inode0 wrote:
> On 12/19/06, Bill Tangren <bjt at aa.usno.navy.mil> wrote:
>> Could someone point me to a link that explains how to present the 
>> user, sitting
>> at the GUI console, with a dialog box either before or after login? 
>> I'm using
>> gdm for console login.
> 
> I'm not clear on what you are trying to do or when but you might look
> at zenity or dialog for popping up dialogs to the user.
> 
> John
> 

OK, zenity will display the dialog box, but where do I place the command so that 
the dialog box is displayed either before or after the user logs in via gdm?