phoneCallbackFunc
The phoneCallbackFunc
function is a placeholder for the application-supplied function name.
VOID FAR PASCAL phoneCallbackFunc(
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HANDLE hDevice, |
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DWORD dwMsg, |
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DWORD dwCallbackInstance, |
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DWORD dwParam1, |
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DWORD
dwParam2, |
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DWORD dwParam3 |
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); |
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Parameters
hDevice
A handle to a
phone device associated with the callback.
dwMsg
A line or
call device message.
dwCallbackInstance
Callback
instance data passed back to the application in the callback. This DWORD is not
interpreted by TAPI.
dwParam1
A parameter
for the message.
dwParam2
A parameter
for the message.
dwParam3
A parameter
for the message.
Remarks
For more
information about the parameters passed to this callback function, see Messages
later in this section.
All callbacks
occur in the application's context. The callback function must reside in a
dynamic-link library (DLL) or application module and be exported in the
module-definition file.