Hi Josh_CS,
Not sure what you mean by you want to hide your desktop while recording. Do you mean you just want to keep the Debut screen open when you are recording? If this is the case, the recorded image will be the Debut screen itself.
If you really want that, you may simply open Debut page from the tray or you may go to the Debut 'Options' and under the 'Record' tab, uncheck the box for 'Minimize Debut Window when recording .....' then click OK to save changes.
If you could describe more of what you are trying to do, maybe someone will be able to help you out more.