Equivalence to the SuperCard function call "via" object

[Dar Scott]

On Wednesday, July 9, 2003, at 09:04 AM, Joël Guillod wrote:

> The problem with the script you propose is that you can have variables 
> with
> values containing quotes and then the script will just fail. The best
> workaround I found until yet is:
>
>   call "myHandler var1,var2,var3" of myObject
>   put the result into fctResult

The TD says...

      The difference between the call and send commands
      is that the send command changes the context so
      that object references are treated relative
      to the object you send the message to,
      while the call command does not change the context
      and continues to treat object references relative
      to the original object.

The "send" also work with the above method.  Depending on your need 
concerning the target, send might be the one for you.

I use send a lot and I have found that my favorite way to pack 
parameters is to use variables.  (This is in the upcoming primer, too.)

> This is working ok but not when a var type is an array!

Also, numbers in internal format (the result of arithmetic and other 
functions) will be converted to strings based on the current 
numberFormat.  Well, that's the case with send and I assume that's the 
way it is with call.

It's the conversion to string that gets you in both cases.  (In the 
upcoming primer, as well.)

You may need to 'combine' the array, but with a new design, I'd try 
something else.  Globals?  The send and call commands don't have to 
return using 'the result', global variables and maybe custom properties 
can be used.  (Hmmm.  Maybe a custom property will do what you want.)


Jan and I tinkered with some very general schemes, but they were 
elaborate and slow and suitable only cases where generality was 
important and speed does not have to be the highest.  I think I'd look 
at send/call depending on your need.

Dar Scott