On Tuesday 17 April 2001 11:21, Thaddeus L. Olczyk wrote:
> I'm not clear on how to start a squeak application.
> In particular:
> I would like to for someone to start the image,
> have the application read configuration details from enviromental
> variables, the command line, configuration files etc.
>
> Here is what I am unclear on:
> "where is the method"/" how do I specify the method"
> that gets called when the vm first loads an image.

A couple ways to do this:

* you can pass a script name (a .st file) in as a command line argument. This 
will be read and executed (if allowed)

* any classes registered in Smalltalk's StartUpList will have #startUp: 
called with a "resuming" argument that says whether this is a real startup or 
just a resume after a snapshot. Likewise for the ShutdownList and #shutDown: 
quitting (the flag is true if we're really quitting).

addToStartUpList: aClass after: predecessor
addToShutDownList: aClass after: predecessor

if  predecessor is nil, aClass is added to the end of the list.

So somewhere you'd go:

Smalltalk addToStartUpList: MyClass after: nil.

and of course provide a MyClass class>>startUp: method.

> Also ( slipping it in because I don't thnk it is worthy a topic of
> it's own ).
> How do I save a squeak image?
> TO me this isn't very clear.

Smalltalk snapshot: true andQuit: quitFlag

if quitFlag is true, you quit too.

-- 
Ned Konz
currently: Stanwood, WA
email:     ned at bike-nomad.com
homepage:  http://bike-nomad.com