How to save current image ?

Thanks, Giorgio, Alan and Lenart.  

BTW Alan,   as a new comer, your technique will be IMMENSELY helpful in unraveling and de-mystifying  the overwhelming world behind VW development environment. Thanks a lot.

Shyam.

On Thu, Jan 19, 2012 at 4:59 PM, Alan Knight <[hidden email]> wrote:

You would want either the ObjectMemory class method #snapshot and its relatives, or the class Snapshot.

For anything that's on a menu, here's a technique.

Look at the menu item for the thing you want to know how to do programmatically. Open a browser. From the menu bar, use Find->Methods with Strings Matching... Type in the name used on the menu for that function with stars in front and behind to catch any extra characters. So, in this case *Save Image*. That will take you two methods, #launcherToolBar and #menuBar. Either will do. You can look at them as source code looking for the string (use the "Source" tab), but they're big literal arrays that hold the window definition so you may be better off clicking the Edit button, loading the UI Painter tools if they're not already there, and looking at it in the menu tool. There you'll find the menu item for Save Image, and its "value" is #imageSave. So that's the method you want. Looking for implementors of that shows you one that calls ObjectMemory snapshot.

Another technique that's often valuable is to just invoke the operation you want, hit control-Y and then look in the resulting debugger for what the system is doing. But for fast operations you might have to be quick with the interrupt key. And that's probably not a good idea to do for testing an image save, as interrupting the system at the wrong point during a save operation might be a bad thing. Or at least, if you're trying that approach, have a backup copy of your saved image in case you stopped it half-way through writing and are left without a saved image.

---

[hidden email]
19 January, 2012 10:41 AM

Hello all,

am a new bee. But throughly enjoying. Any one can help me how to find out where I can document the way to save a current image in memory from within the language ? Besides, is there any definitive way to scientifically search out such functionalities?

Thanks
Shyam

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--

Shyam Sundaresan

+39 335 74 39 444

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Alan's technique works great for anything you can interrupt, but not for the save as.  I found tracking down the functions behind the save image menu item rather problematic, but eventually I ended up with this:
            ObjectMemory globalCompactingGC.
            ObjectMemory saveAs: ObjectMemory imageFilePrefixWithoutPath thenQuit: true.

It works great for me.

On Thu, Jan 19, 2012 at 9:03 AM, Shyam Sundaresan (Personal) <[hidden email]> wrote:

Thanks, Giorgio, Alan and Lenart.  

BTW Alan,   as a new comer, your technique will be IMMENSELY helpful in unraveling and de-mystifying  the overwhelming world behind VW development environment. Thanks a lot.

Shyam.

On Thu, Jan 19, 2012 at 4:59 PM, Alan Knight <[hidden email]> wrote:

You would want either the ObjectMemory class method #snapshot and its relatives, or the class Snapshot.

For anything that's on a menu, here's a technique.

Look at the menu item for the thing you want to know how to do programmatically. Open a browser. From the menu bar, use Find->Methods with Strings Matching... Type in the name used on the menu for that function with stars in front and behind to catch any extra characters. So, in this case *Save Image*. That will take you two methods, #launcherToolBar and #menuBar. Either will do. You can look at them as source code looking for the string (use the "Source" tab), but they're big literal arrays that hold the window definition so you may be better off clicking the Edit button, loading the UI Painter tools if they're not already there, and looking at it in the menu tool. There you'll find the menu item for Save Image, and its "value" is #imageSave. So that's the method you want. Looking for implementors of that shows you one that calls ObjectMemory snapshot.

Another technique that's often valuable is to just invoke the operation you want, hit control-Y and then look in the resulting debugger for what the system is doing. But for fast operations you might have to be quick with the interrupt key. And that's probably not a good idea to do for testing an image save, as interrupting the system at the wrong point during a save operation might be a bad thing. Or at least, if you're trying that approach, have a backup copy of your saved image in case you stopped it half-way through writing and are left without a saved image.

---

[hidden email]
19 January, 2012 10:41 AM

Hello all,

am a new bee. But throughly enjoying. Any one can help me how to find out where I can document the way to save a current image in memory from within the language ? Besides, is there any definitive way to scientifically search out such functionalities?

Thanks
Shyam

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

--

Shyam Sundaresan

<a href="tel:%2B39%20335%2074%2039%20444" value="+393357439444" target="_blank">+39 335 74 39 444

My LinkedIn Profile

_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

_______________________________________________
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[hidden email]
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