| cbSize | DWORD | 4 | +0 | +0 |
| pfnEnumPorts | PFN_PRINTING_ENUMPORTS2 | 8/4 | +8 | +4 |
| pfnOpenPort | PFN_PRINTING_OPENPORT2 | 8/4 | +16 | +8 |
| pfnOpenPortEx | PFN_PRINTING_OPENPORTEX2 | 8/4 | +24 | +12 |
| pfnStartDocPort | PFN_PRINTING_STARTDOCPORT2 | 8/4 | +32 | +16 |
| pfnWritePort | PFN_PRINTING_WRITEPORT2 | 8/4 | +40 | +20 |
| pfnReadPort | PFN_PRINTING_READPORT2 | 8/4 | +48 | +24 |
| pfnEndDocPort | PFN_PRINTING_ENDDOCPORT2 | 8/4 | +56 | +28 |
| pfnClosePort | PFN_PRINTING_CLOSEPORT2 | 8/4 | +64 | +32 |
| pfnAddPort | PFN_PRINTING_ADDPORT2 | 8/4 | +72 | +36 |
| pfnAddPortEx | PFN_PRINTING_ADDPORTEX2 | 8/4 | +80 | +40 |
| pfnConfigurePort | PFN_PRINTING_CONFIGUREPORT2 | 8/4 | +88 | +44 |
| pfnDeletePort | PFN_PRINTING_DELETEPORT2 | 8/4 | +96 | +48 |
| pfnGetPrinterDataFromPort | PFN_PRINTING_GETPRINTERDATAFROMPORT2 | 8/4 | +104 | +52 |
| pfnSetPortTimeOuts | PFN_PRINTING_SETPORTTIMEOUTS2 | 8/4 | +112 | +56 |
| pfnXcvOpenPort | PFN_PRINTING_XCVOPENPORT2 | 8/4 | +120 | +60 |
| pfnXcvDataPort | PFN_PRINTING_XCVDATAPORT2 | 8/4 | +128 | +64 |
| pfnXcvClosePort | PFN_PRINTING_XCVCLOSEPORT2 | 8/4 | +136 | +68 |
| pfnShutdown | PFN_PRINTING_SHUTDOWN2 | 8/4 | +144 | +72 |
| pfnSendRecvBidiDataFromPort | PFN_PRINTING_SENDRECVBIDIDATAFROMPORT2 | 8/4 | +152 | +76 |
| pfnNotifyUsedPorts | PFN_PRINTING_NOTIFYUSEDPORTS2 | 8/4 | +160 | +80 |
| pfnNotifyUnusedPorts | PFN_PRINTING_NOTIFYUNUSEDPORTS2 | 8/4 | +168 | +84 |
| pfnPowerEvent | PFN_PRINTING_POWEREVENT2 | 8/4 | +176 | +88 |