[PD] changing color of canvas dinamically

Mathieu Bouchard matju at artengine.ca
Fri Nov 4 02:53:44 CET 2005

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:

[* 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

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