Disabling/Enabling saving of iparms and metafiles when plotting from the IPLOT dialog

If one of the following variables is set to "true", its corresponding file is kept, allowing you to use it with the command line interface.  If it is set to "false", the file is deleted.  Note:  A metafile is of little use without its corresponding IPARM file, so if you set IPLOT_DLOG_SAVE_IPARM to "false", the dialog interface always interprets IPLOT_DLOG_SAVE_METAFILE as "false".



The default setting for these variables is True.