LINE_ADDRESSSTATE (TAPI) (Windows CE 5.0)
This message is sent when the status of an address changes on a line that is currently open by the application. The application can invoke the lineGetAddressStatus function to determine the current status of the address.
LINE_ADDRESSSTATE dwDevice = (DWORD) hLine;dwCallbackInstance = (DWORD)hCallback;dwParam1 = (DWORD)idAddress;dwParam2 = (DWORD)AddressState;dwParam3 = (DWORD) 0;
Parameters
- dwDevice
Handle to the line device. - dwCallbackInstance
Callback instance supplied when opening the line. - dwParam1
Address identifier of the address that changed status. - dwParam2
Value that specifies the address state that changed. It can be a combination of values using the LINEADDRESSSTATE. - dwParam3
Not used by this message. Value is NULL.
Return Values
None.
Remarks
The LINE_ADDRESSSTATE message is sent to any application that has opened the line device and that has enabled this message. The sending of this message for the various status items can be controlled and queried using lineGetStatusMessages and lineSetStatusMessages. By default, address status reporting is disabled.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Tapi.h.
See Also
lineGetAddressStatus | lineGetStatusMessages | lineSetStatusMessages
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