|
lineCallbackFunc
The lineCallbackFunc function is a placeholder for the application-supplied function name.
VOID FAR PASCAL lineCallbackFunc(
DWORD hDevice,
|
| DWORD dwMsg,
|
| DWORD dwCallbackInstance,
|
| DWORD dwParam1,
|
| DWORD dwParam2,
|
| DWORD dwParam3
|
| );
|
|
Parameters
hDevice
A handle to either a line device or a call associated with the callback. The
nature of this handle (line handle or call handle) can be determined by the
context provided by dwMsg. Applications must use the DWORD type for this parameter because using the
HANDLE type may generate an error.
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 information about parameter values passed to this function, see Line
Device Messages.
All callbacks occur in the application's context. The callback function must
reside in a DLL or application module.
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