The floating window is actually a derivative of RadForm. Since RadForm is a derivative of the standard MS Form, making a shadow is more like a general programming questions. That is why it is recommended to follow some of the already referred approaches in this thread: https://www.telerik.com/forums/windows-form-shadow
RadDock offers the FloatingWindowCreated event which allows you to replace the window with your custom implementation:
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Regards,
Dess | Tech Support Engineer, Principal
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