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In the example above we have set treeItem.lParam to NULL however . However this is a free form field and you may wish to set this to some object which is then used to process your events in a more object oriented fashion. e.g.
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In the example above we have set treeItem.lParam to NULL however . However this is a free form field and you may wish to set this to some object which is then used to process your events in a more object oriented fashion. e.g.
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