Cool, thanx The Borg pattern works, it suppress the content of my already created panel and create another fresh one but the old tab still there! How can i delete it in the same time? I'm also looking a way to access knobs values from panels in python?
Regards, Bertrand > I'm looking for a way of creating a Panel that can only be created once > like the "Properties Bin". > What i did until now is to populate the panel in the register and check > if it exist or not and it work until the panel is close, i can't open it > anymore. I didn't find any informations about Pane closing callback that > could let me unregister it. > > Or maybe there is an easiest way of doing? You can create a singleton or use the Borg pattern. See: http://stackoverflow.com/questions/31875/is-there-a-simple-elegant-way-to-define-singletons-in-python HTH -- Wouter Klouwen, Software Engineer The Foundry, 6th Floor, The Communications Building, 48 Leicester Square, London, WC2H 7LT, UK T: +442079686828 - F: +442074341550 - thefoundry.co.uk The Foundry Visionmongers Ltd - Reg.d in England and Wales No: 4642027
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