LINE_DEVSPECIFIC (TAPI)

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This message is sent to notify the application about device-specific events occurring a line, address or call. The meaning of the message and the interpretation of the parameters is device specific.

Syntax

LINE_DEVSPECIFIC 
    dwDevice = (DWORD) hLineOrCall;
    dwCallbackInstance = (DWORD) hCallback;
    dwParam1 = (DWORD) DeviceSpecific1; 
    dwParam2 = (DWORD) DeviceSpecific2;
    dwParam3 = (DWORD) DeviceSpecific3;

Parameters

• dwDevice
  Handle to either a line device or call. This is device specific.

• dwCallbackInstance
  Callback instance supplied when opening the line.

• dwParam1
  Device specific.

• dwParam2
  Device specific.

• dwParam3
  Device specific.

Return Value

None.

Remarks

The LINE_DEVSPECIFIC message is used by a service provider in conjunction with the lineDevSpecific function. Its meaning is device specific.

Requirements

See Also

Reference

lineDevSpecific