ITCallStateEvent::get_CallbackInstance method (tapi3if.h)

The get_CallbackInstance method gets a pointer to the callback instance associated with this event.

Syntax

HRESULT get_CallbackInstance(
  [out] long *plCallbackInstance
);

Parameters

[out] plCallbackInstance

Pointer to callback instance returned by ITTAPI::RegisterCallNotifications.

Return value

This method can return one of these values.

Return code	Description
S_OK	Method succeeded.
E_OUTOFMEMORY	Insufficient memory exists to perform the operation.
E_POINTER	The plCallbackInstance parameter is not a valid pointer.

Requirements

Requirement	Value
Target Platform	Windows
Header	tapi3if.h (include Tapi3.h)
Library	Uuid.lib
DLL	Tapi3.dll

See also

Call Object

ITCallStateEvent

ITTAPI::RegisterCallNotifications