Hey all,
So, I went through the tutorial on manipulating canvases. I have gotten most of the actions to work (They seem to use the message boxes with semicolons to do the work.)

The tutorial was here:
http://www.pd-tutorial.com/english/ch05s02.html

I have successfully used
|; CANVASNAME color $1 $2(

|; CANVASNAME label_pos $1 $2(

|; CANVASNAME label_font $1 $2(

|; CANVASNAME label NAME(

|; CANVASNAME size $1 (

and the rest. . . .

EXCEPT FOR !!

|; CANVASNAME get_pos(
|r CANVASNAME|
|
|unpack f f|
| |
number number

Any idea what I am doing wrong? I would like to be able to retrieve the location of a canvas. That is what I am trying to do.

@raynovich Maybe it is the send and receive messages?
In your sub-patch "canvas properties" you must have put CANVASNAME as your receive symbol?
In the same window you need to put a send symbol (which is different) and then use something like [r canvas_position] for your "get_pos"
You send a message to the canvas [s CANVASNAME] asking for its position, and it sends its position back via "canvas_position" and you receive it with [r canvas_position] ........ like this:..............

Then you would have

|;
CANVASNAME get_pos(
|r canvas_position|
|
|unpack f f|
| |

"CANVASNAME" and "canvas_position" could be "this_1" and "THAT"...... the names are not important. They must be different and different to any other send/receive names in your patch.
If you post your patch then it will be much easier for someone to help!
David.

YEAH!!!! THANKS!!!!! It seems to be working now!!!

@raynovich You are very welcome!
Have Fun!
David.