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Voice API for Windows Operating Systems Library Reference — November 2003 427
start a transmit-initiated reception of data — dx_TxRxIottData( )
The transmit portion of the dx_TxRxIottData( ) function will continue until one of the following
occurs:
• all data specified in DX_IOTT has been transmitted
• dx_stopch( ) is issued on the channel
• one of the conditions specified in DV_TPT is satisfied
The receive portion of the dx_TxRxIottData( ) function will continue until one of the following
occurs:
• dx_stopch( ) is called
• the data requirements specified in the DX_IOTT are fulfilled
• the channel detects end of FSK data
• one of the conditions in the DV_TPT is satisfied
lpTxTerminations Points to the Termination Parameter Table structure, DV_TPT, which
specifies termination conditions for the device handle.
Supported values are:
• DX_MAXTIME
• DX_MAXDATA (valid values are 1 - 65535 for tp_length field)
For more information on this structure, see DV_TPT, on page 485.
lpRxIott Points to the I/O Transfer Table structure. lpRxIott specifies the
destination of the messages to be received. This is the same DX_IOTT
structure used in dx_playiottdata( ) and dx_reciottdata( ). See
DX_IOTT, on page 509, for more information on this data structure.
lpRxTerminations Points to the Termination Parameter Table structure, DV_TPT, which
specifies termination conditions for the device handle.
Supported values are:
• DX_MAXTIME
• DX_MAXDATA (valid values are 1 - 65535 for tp_length field)
For more information on this structure, see DV_TPT, on page 485.
wType Specifies the type of data to be transmitted and received. To transmit and
receive ADSI data, set wType to DT_ADSI.
lpParams Points to a structure that specifies additional information about the data
that is to be sent and received. The structure type is determined by the data
type (ADSI) specified by wType. For ADSI data, set lpParams to point to
an ADSI_XFERSTRUC parameter block structure. For more information
on this structure, see ADSI_XFERSTRUC, on page 478.
mode Specifies how the function should execute, either EV_ASYNC
(asynchronous) or EV_SYNC (synchronous).
Parameter Description