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Closing the Phone Device
The phoneClose function closes the specified phone device. The phone device can also be
forcibly closed after the user has modified the configuration of that phone or its
driver. If the user wants the configuration changes to be effective immediately
(as opposed to after the next system restart), and they affect the
application's current view of the device (such as a change in device capabilities), then a
service provider can forcibly close the phone device.
These messages can also be sent unsolicited as a result of the phone device
being reclaimed in some other manner. An application should therefore be prepared
to handle unsolicited PHONE_CLOSE messages. At the time the phone device is closed, any outstanding
asynchronous replies pertaining to that device are suppressed.
Related Links
Software for Delphi and C++ Builder developers
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Win32 Programmer's Reference (win32.hlp)
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
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