LINE_MONITORMEDIA (TSPI)
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4/8/2010
This message is sent to theLINEEVENT callback function whenever a change in the call's media type is detected and media type monitoring is enabled. The sending of this message is controlled by the TSPI_lineMonitorMedia function.
Syntax
LINE_MONITORMEDIA
htLine = (HTAPILINE) hLineDevice;
htCall = (HTAPICALL) hCallDevice;
dwMsg = (DWORD) LINE_MONITORMEDIA;
dwParam1 = (DWORD) LineMediaMode;
dwParam2 = (DWORD) 0;
dwParam3 = (DWORD) dwTickCount;
Parameters
- htLine
The TAPI opaque object handle to the line device.
- htCall
The TAPI opaque object handle to the call device.
- dwMsg
The value LINE_MONITORMEDIA.
- dwParam1
Specifies the new media type (mode). This parameter can be one of the LINEMEDIAMODE_ constants.
- dwParam2
Not used.
- dwParam3
Service providers insert into dwParam3 the tick count (the number of milliseconds since Windows started), obtained from GetTickCount, at which the specified media was detected.
Remarks
This message is sent only when media type monitoring is enabled.
Requirements
Header | tapi.h |
Windows Embedded CE | Windows CE 3.0 and later |
Windows Mobile | Windows Mobile Version 5.0 and later |