The SetDefaultPrinter method sets the current printer (the one specified in Initialize) as default printer.
HRESULT SetDefaultPrinter( void );
Return values:
S_OK on success or COM error code
NV_NOT_INITIALIZED - Initialize was not called
Remarks:
After calling SetDefaultPrinter with an INovaPdfOptions object, call RestoreDefaultPrinter with the same object to restore the original default printer. Do not call SetDefaultPrinter twice, without calling RestoreDefaultPrinter between the calls or else the original default printer will not be restored.