You have to have the correct permissions to change the global print settings for the network printer, otherwise you'll receive an "Access Denied" error message on the OpenPrinter().

>I want to delete all Print Jobs from a print queue if a user decides to abort a print job. The following code to access the default printer works fine with the local printer connected to my machine. However, I get an error message ‘Access denied’ when my default printer is a network shared printer.
>
>The code:
>-----------------------------------------------------------------------
>#DEFINE PRINTER_ACCESS_ADMINISTER 4
>
>* Open a Pinter with proper access rights
>lcPrDef = REPLICATE(CHR(0),8) + CHR(PRINTER_ACCESS_ADMINISTER) + REPLICATE(CHR(0),3)
>lnOK = OpenPrinter( tcPrinterName, @lnHandle, lcPrDef
>
>IF lnOK = 0 THEN
> lcErrorTxt = ApiError()
> WAIT WINDOW NOWAIT "Cannot Open Printer " + tcPrinterName + CHR(13) + lcErrorTxt
> RETURN -1
>ENDIF
>----------------------------------------------------------------------------
>
>Is there any way to get around this problem? Or how do I cancel printing from a network printer programmatically?
>
>Thanks.