/**********************************************************
* MainDialogProc *
*----------------*
* Description:
* Main dialog proc for this sample
***********************************************************/
BOOL CALLBACK MainDialogProc(
HWND hDlg,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
// This is set to be the window long in WM_INITDIALOG
COperator *pThis = (COperator *) ::GetWindowLong( hDlg, GWL_USERDATA );
switch (uMsg)
{
case WM_INITDIALOG:
{
// Get the pointer to the COperator object from the lParam.
// Store it in the window long as user data
pThis = (COperator *) lParam;
::SetWindowLong( hDlg, GWL_USERDATA, (LPARAM) pThis );
// Hand the window handle to the event notification object
// so that this window will get window messages about incoming calls
pThis->m_pTAPIEventNotification->SetHWND( hDlg );
// Get the window handle
pThis->m_hDlg = hDlg;
// Wait for a call
::EnableWindow( ::GetDlgItem( hDlg, IDC_ANSWER ), FALSE );
pThis->SetStatusMessage( L"Waiting for a call..." );
return 0;
}
case WM_PRIVATETAPIEVENT:
{
// This message is received whenever a TAPI event occurs
pThis->OnTapiEvent( (TAPI_EVENT) wParam,
(IDispatch *) lParam );
return 0;
}
case WM_COMMAND:
{
if ( LOWORD(wParam) == IDCANCEL )
{
// Quit
EndDialog( hDlg, 0 );
return 1;
}
switch ( LOWORD(wParam) )
{
case IDC_AUTOANSWER:
{
// Auto answer check box state was changed
pThis->m_fAutoAnswer = !pThis->m_fAutoAnswer;
return 1;
}
case IDC_ANSWER:
{
// Answer the call
pThis->SetStatusMessage(L"Answering...");
if ( S_OK == pThis->AnswerTheCall() )
{
pThis->SetStatusMessage(L"Connected");
::EnableWindow( ::GetDlgItem( hDlg, IDC_ANSWER ), FALSE );
// Connected: Talk to the caller
// PLEASE NOTE: This is a single-threaded app, so if the caller
// hangs up after the call-handling sequence has started, the
// app will not be notified until after the entire call sequence
// has finished.
// If you want to be able to cut the call-handling short because
// the caller hung up, you need to have a separate thread listening
// for TAPI's CS_DISCONNECT notification.
HRESULT hrHandleCall = pThis->HandleCall();
if ( FAILED( hrHandleCall ) )
{
if ( TAPI_E_DROPPED == hrHandleCall )
{
pThis->SetStatusMessage( L"Caller hung up prematurely" );
}
else
{
pThis->DoMessage( L"Error encountered handling the call" );
}
}
// Hang up if we still need to
if ( NULL != pThis->m_pCall )
{
// The caller is still around; hang up on him
pThis->SetStatusMessage(L"Disconnecting...");
if (S_OK != pThis->DisconnectTheCall())
{
pThis->DoMessage(L"Disconnect failed");
}
}
}
else
{
::EnableWindow( ::GetDlgItem( hDlg, IDC_ANSWER ), FALSE );
pThis->DoMessage(L"Answer failed");
}
// Waiting for the next call...
pThis->SetStatusMessage(L"Waiting for a call...");
return 1;
}
case IDC_DISCONNECTED:
{
// This message is sent from OnTapiEvent()
// Disconnected notification -- release the call
pThis->ReleaseTheCall();
::EnableWindow( ::GetDlgItem( hDlg, IDC_ANSWER ), FALSE );
pThis->SetStatusMessage(L"Waiting for a call...");
return 1;
}
default:
return 0;
}
}
default:
return 0;
}
} /* MainDialogProc */
