* EnumPrinterForms.prg DEFINE CLASS EnumPrinter Forms AS Custom HIDDEN hHeap, nInch2mm, nCm2mm, nCoefficient *BROWSE NOWAIT BROWSE NOWAIT FOR IsSupported *? loOneForm.FormID, loOneForm.FormName, loOneForm.Width, loOneForm.Height, loOneForm.FormFlags INSERT INTO crsPrintr Forms FROM NAME loOne Form ENDFOR GO TOP * Enumerate forms for specified Windows printer *lcPrinter = "Adobe PDF" * Enumerate all print forms and get info about specific for stored in the properties of the object IF NOT ooo.Get FormList(lcPrinter, "Envelope")įOR i=1 TO ooo.o FormList. * Enumerate forms for default VFP printer lcPrinter = SET( "Printer",3) Ooo = NEWOBJECT( "EnumPrinterForms", "EnumPrinterForms.fxp") These manual printer queues from the previous session now are automatically announced to the server by MSTSCAX.DLL (client RDPDR.LIB) and can now be viewed as automatic printer queues.CLEAR * Form flag values #define FORM_USER 0x00000000 These printers were persisted by the client in the registry (see Details of Queue Configuration Changes). In addition to the printers that were automatically detected, the client also announces printers that were manually created in a previous session by the user or administrator.
The client sends data for each enumerated printer, including printer name, printer type (for example, network or local), driver name, and any configuration data, such as paper orientation (portrait or landscape) or number of pages per sheet, that was previously saved by the client in the registry.
The printers automatically detected via the EnumPrinters() API are always called automatic printer queues. In RDP 5.0, only printers connected locally to the client machine via COM, Serial, or USB ports are redirected in Terminal Server sessions. Printers are enumerated using the EnumPrinters() API. The client-side RDPDR subcomponent within MSTSCAX.DLL enumerates printers on the client and announces them to the server. With regard to printing, it is a TS client-side component that implements the RDP Virtual Channel for redirected printing. MSTSCAX.DLL is the Terminal Services Client ActiveX Control.
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