2.2.4.1.3.70 SetDevConfig

The SetDevConfig packet is transmitted from a TAPI client to a TAPI server in a remote procedure call. Sending this packet MUST restore the configuration of a device that is associated one-to-one with the line device.


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Req_Func

Reserved1

dwDeviceID

lpDeviceConfig

dwSize

lpszDeviceClass

Reserved2

Reserved3

Reserved4

Reserved5

Reserved6

Reserved7

Reserved8

Reserved9

Reserved10

VarData (variable)

...

Req_Func (4 bytes): An unsigned 32-bit integer. The identifier of the function that will be invoked on the remote server. This value MUST be set to 77.

Return Values

On completion of ClientRequest, this field MUST contain the result of the encapsulated telephony request. A value of 0 indicates success, and a LINEERR_Constants value indicates failure. The remote server MUST complete this call synchronously.

Returns zero if the function succeeds or an error number if an error occurs. Common return values are:

Name

Value

LINEERR_INVALDEVICECLASS

0x80000023

LINEERR_NOMEM

0x80000044

LINEERR_INVALPOINTER

0x80000035

LINEERR_OPERATIONUNAVAIL

0x80000049

LINEERR_INVALPARAM

0x80000032

LINEERR_OPERATIONFAILED

0x80000048

LINEERR_INVALLINESTATE

0x8000002C

LINEERR_RESOURCEUNAVAIL

0x8000004B

LINEERR_NODRIVER

0x80000043

Reserved1 (4 bytes): An unsigned 32-bit integer. MUST be set to zero when sent and MUST be ignored on receipt.

dwDeviceID (4 bytes): An unsigned 32-bit integer. The line device to be configured. A valid value of dwDeviceID is in the range 0 to dwNumDevs –1. The client obtains dwNumDevs by sending a Initialize packet to the remote server.

lpDeviceConfig (4 bytes): An unsigned 32-bit integer. The offset, in bytes, in the VarData field of the device configuration data structure VARSTRING that was returned by the GetDevConfig packet.

dwSize (4 bytes): An unsigned 32-bit integer. The number of bytes in the packet that is pointed to by lpDeviceConfig.

lpszDeviceClass (4 bytes): An unsigned 32-bit integer. The offset, in bytes, in the VarData field of a null-terminated Unicode string that specifies the device class of the device whose configuration will be restored.

Reserved2 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved3 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved4 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved5 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved6 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved7 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved8 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved9 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved10 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

VarData (variable): MUST contain a configuration data packet VARSTRING that is indicated by the lpDeviceConfig field and a null-terminated Unicode string that is indicated by the lpszDeviceClass field in the original request. This field is not present in the response.

The contents of this field are DWORD-aligned.