[Newbies] Manipulation of existing objects

[Bert Freudenberg]

On Jan 6, 2008, at 22:05 , Enno Schwass wrote:

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> Hi
>
>> | rectangle |
>> rectangle := RectangleMorph new openInWorld.
>> rectangle color: Color white.
>>
>> Now, that the object is created in the World, how do I change its  
>> properties while it exists? How would one change the color of the  
>> RectangleMorph in this example, while it is on screen? Since  
>> everything is an object, and objects can receive messages, I do  
>> believe this to be possible, correct?
>
> Just send messages to your reference (rectangle).
>
> You did this in line 2
>
> rectangle color: Color white.
>
> You can send other messages like
>
> rectangle useRoundedCorners.
>
> If you dont have a reference to your morph, open a workspace,  
> select in its menu
>
> "create textual references to dropped morphs"
>
> then drag and drop your morph into your workspace. Use the printed  
> reference to send messages to.

Actually, the usual way is to open an inspector on the object you  
want to work with, and start sending messages to self.

- Bert -