By using [canvasdelete] from the iemguts. It allows to delete certain objects of a certain canvas by their index number (for instance, 'delete 12'). The canvas needs a [canvasdelete] in order to add the 'delete' method to the canvas and a [sendcanvas] to which the 'delete <id>' message is sent.
How do you intend to manage those numbers from Pd without ever getting mixed up ?
Then I ran into another problem: I was creating [cnv] objects in a GOP and moving them out of the GOP area, which is a way to display something in the parent patch outside the GOP area. However, when deleting such gui objects, they remain visible in the parent (as if the parent wouldn't be refreshed).
Why do you want to rely on a bug ?
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