2.2.4.1.1 Server Initialize Printer Request (INIT_PRINTER_REQ)
The INIT_PRINTER_REQ message MUST be the first message, sent from the server to the client, in the Printer Driver Interface. This message establishes a link between a particular client-side printer and the dynamic virtual channel connection. After this link is established, any messages coming on the same channel implicitly refer to the same client printer driver.
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ClientPrinterId |
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Header (variable): The common message header (as specified in section 2.2.1). The InterfaceId field MUST be set to 0x00000000. The FunctionId field MUST be set to INIT_PRINTER_REQ (0x00000100).
ClientPrinterId (4 bytes): A 32-bit unsigned integer. This ID is exchanged by the Remote Desktop Protocol: File System Virtual Channel Extension, as specified in [MS-RDPEFS]. The ClientPrinterId value MUST be the same as the DeviceId field in the DEVICE_ANNOUNCE packet (as specified in [MS-RDPEFS] section 2.2.1.3).