Important: |
---|
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
A version of this page is also available for
4/8/2010
This function is a placeholder for the application-supplied function name.
Syntax
VOID FAR PASCAL lineCallbackFunc( DWORD hDevice, DWORD dwMsg, DWORD dwCallbackInstance, DWORD dwParam1, DWORD dwParam2, DWORD dwParam3 ); |
Parameters
- hDevice
-
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 DWORDtype for this parameter because using the HANDLEtype may cause an error.
- dwMsg
-
Line or call device message.
- dwCallbackInstance
-
Callback instance data passed back to the application in the callback. This DWORDis not interpreted by TAPI.
- dwParam1
-
Message-specific data.
- dwParam2
-
Message-specific data.
- dwParam3
-
Message-specific data.
Remarks
All callbacks occur in the application context. The callback function must reside in a DLL or application module.
Requirements
Header | tapi.h |
Library | coredll.lib |
Windows Embedded CE | Windows CE 1.0 and later |
Windows Mobile | Windows Mobile Version 5.0 and later |