LINE_SENDMSPDATA

The TSPI LINE_SENDMSPDATA message is sent when the telephony service provider (TSP) wants to pass information to the media service provider (MSP).

LINE_SENDMSPDATA
htLine = LineDevice;
htCall = Call;
dwMsg = LINE_SENDMSPDATA;
dwParam1 = (DWORD) hdMSPLine;
dwParam2 = (DWORD) pBuffer;
dwParam3 = (DWORD) dwSize;

Parameters

htLine

The TAPI handle for the line.

htCall

The TAPI handle for the call.

dwMsg

The value LINE_SENDMSPDATA.

dwParam1

Identifies the MSP that should receive the message. If 0, the message will be sent to all MSPs.

dwParam2

The buffer to pass to the MSP. The buffer is not interpreted by TAPI.

dwParam3

The size in bytes of buffer in dwParam2.

Remarks

The service provider must negotiate a TAPI version 3.0 or later for this message to operate.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Unsupported.
  Version: Requires TAPI 3.0 or later.
  Header: Declared in Tspi.h.

See Also

About The Media Service Provider (MSP), TSPI_lineMSPIdentify, TSPI_lineCreateMSPInstance, TSPI_lineCloseMSPInstance, TSPI_lineRecieveMSPData, LINEDEVCAPS