[PD] changing color of canvas dinamically

[Mathieu Bouchard]

On Wed, 2 Nov 2005, matias kapo wrote:

> hello people, do anybody know if its posible to change the color of a
> canvas dynamically? for example with a bang? any idea?

If you mean a [cnv] object, then you need to set a receive-symbol on it 
and send messages to it like "color -666" where the number is computed 
this way:

red
 |
[* 256]
 |
[+] <- green
 |
[* 256]
 |
[+] <- blue
 |
[* -1]
 |
[- 1]
 |
[color $1}
 |
[s my_cnv]

where [} is a msgbox

However, if you mean coloring the background of a [pd] object or other 
patcher, GOP or not, then you can't using Pd internals, which you can 
circumvent by covering the whole patcher using a very big [cnv]. You may 
also use TOXY (by Krzysztof Czaya) to issue Tcl/Tk commands from Pd.

____________________________________________________________________
Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
Freelance Digital Arts Engineer, Montréal QC Canada