2.2.3.2.8 Client Print Caps Response (PRINT_CAPS_RSP)
The PRINT_CAPS_RSP response message returns client print capabilities in response to a PRINT_CAPS_REQ message.
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Header (variable) |
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is_null_flag |
Capabilities (variable) |
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Result |
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Header (variable): The common message header (as specified in section 2.2.1). The InterfaceId field and the MessageId field in this message header MUST contain the same values as the InterfaceId and MessageId fields in the corresponding PRINT_CAPS_REQ request message.
is_null_flag (1 byte): An 8-bit unsigned integer. This field determines whether the following optional Capabilities field is present. is_null_flag MUST be one of the following values.
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Value
Meaning
0x00
Capabilities field is present.
0x01
Capabilities field is not present.
Capabilities (variable): This field describes the requested printer capabilities in XML_DOCUMENT format returned by the client printer driver. The content is treated as payload in this protocol.
Result (4 bytes): An HRESULT that describes the result of the call.