The LINE_CREATE message is sent to inform the application of the creation of a
new line device.
dwDevice = (DWORD) 0;
dwCallbackInstance = (DWORD) 0;
dwParam1 = (DWORD) idDevice;
dwParam2 = (DWORD) 0;
dwParam3 = (DWORD) 0;
of the newly-created device.
No return value.
Older applications (which negotiated TAPI version 0x00010003) are sent a
LINE_LINEDEVSTATE message specifying LINEDEVSTATE_REINIT, which requires them to
shut down their use of the API and call lineInitialize
again to obtain the new number of devices. Unlike previous versions of TAPI,
however, this version does not require all
applications to shut down before allowing applications to reinitialize;
reinitialization can take place immediately when a new device is created (complete
shutdown is still required when a service provider is removed from the system).
Applications supporting TAPI version 0x00010004 or above are sent a
LINE_CREATE message. This informs them of the existence of the new device and its new
device ID. The application can then choose whether or not to attempt working with
the new device at its leisure. This message will be sent to all applications
supporting this or subsequent versions of the API which have called lineInitialize
, including those that do not have any line devices open at the time.
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