lineSetLineDevStatus
The lineSetLineDevStatus
function sets the line device status. Except for basic parameter validation, it
is a straight pass-through to the service provider. The service provider will
send a LINE_LINEDEVSTATUS message to inform applications of the new state, when
set; TAPI does not synthesize these messages.
LONG WINAPI lineSetLineDevStatus(
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DWORD hLine, |
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DWORD dwStatusToChange, |
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DWORD fStatus |
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); |
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Parameters
hLine
Handle to the
line device.
dwStatusToChange
One or more
of the LINEDEVSTATUSFLAGS_ values.
fStatus
TRUE (-1) to turn on the indicated status bit(s), FALSE (0)
to turn off.
Return Values
Returns a
positive request identifier if the asynchronous operation starts; otherwise,
one of these negative error values:
LINEERR_INVALLINEHANDLE,
LINEERR_INVALLINESTATE, LINEERR_INVALPARAM, LINEERR_NOMEM,
LINEERR_OPERATIONUNAVAIL, LINEERR_OPERATIONFAILED, LINEERR_RESOURCEUNAVAIL,
LINEERR_UNINITIALIZED.