Creating an OLE DB Data Provider

// DlgProxy.cpp : implementation file
//

#include "stdafx.h"
#include "SensorInterf.h"
#include "DlgProxy.h"
#include "SensorInterfDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CSensorInterfDlgAutoProxy

IMPLEMENT_DYNCREATE(CSensorInterfDlgAutoProxy, CCmdTarget)

CSensorInterfDlgAutoProxy::CSensorInterfDlgAutoProxy()
{
	EnableAutomation();
	
	// To keep the application running as long as an automation 
	//	object is active, the constructor calls AfxOleLockApp.
	AfxOleLockApp();

	// Get access to the dialog through the application's
	//  main window pointer.  Set the proxy's internal pointer
	//  to point to the dialog, and set the dialog's back pointer to
	//  this proxy.
	ASSERT (AfxGetApp()->m_pMainWnd != NULL);
	ASSERT_VALID (AfxGetApp()->m_pMainWnd);
	ASSERT_KINDOF(CSensorInterfDlg, AfxGetApp()->m_pMainWnd);
	m_pDialog = (CSensorInterfDlg*) AfxGetApp()->m_pMainWnd;
	m_pDialog->m_pAutoProxy = this;
}

CSensorInterfDlgAutoProxy::~CSensorInterfDlgAutoProxy()
{
	// To terminate the application when all objects created with
	// 	with automation, the destructor calls AfxOleUnlockApp.
	//  Among other things, this will destroy the main dialog
	if (m_pDialog != NULL)
		m_pDialog->m_pAutoProxy = NULL;
	AfxOleUnlockApp();
}

void CSensorInterfDlgAutoProxy::OnFinalRelease()
{
	// When the last reference for an automation object is released
	// OnFinalRelease is called.  The base class will automatically
	// deletes the object.  Add additional cleanup required for your
	// object before calling the base class.

	CCmdTarget::OnFinalRelease();
}

BEGIN_MESSAGE_MAP(CSensorInterfDlgAutoProxy, CCmdTarget)
	//{{AFX_MSG_MAP(CSensorInterfDlgAutoProxy)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BEGIN_DISPATCH_MAP(CSensorInterfDlgAutoProxy, CCmdTarget)
	//{{AFX_DISPATCH_MAP(CSensorInterfDlgAutoProxy)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_DISPATCH_MAP
END_DISPATCH_MAP()

// Note: we add support for IID_ISensorInterf to support typesafe binding
//  from VBA.  This IID must match the GUID that is attached to the 
//  dispinterface in the .ODL file.

// {428B04F1-4F52-405E-A6BC-E18384454AC0}
static const IID IID_ISensorInterf =
{ 0x428b04f1, 0x4f52, 0x405e, { 0xa6, 0xbc, 0xe1, 0x83, 0x84, 0x45, 0x4a, 0xc0 } };

BEGIN_INTERFACE_MAP(CSensorInterfDlgAutoProxy, CCmdTarget)
	INTERFACE_PART(CSensorInterfDlgAutoProxy, IID_ISensorInterf, Dispatch)
END_INTERFACE_MAP()

// The IMPLEMENT_OLECREATE2 macro is defined in StdAfx.h of this project
// {166F9F2E-EA77-4CD9-923A-E97A3B2F8131}
IMPLEMENT_OLECREATE2(CSensorInterfDlgAutoProxy, "SensorInterf.Application", 0x166f9f2e, 0xea77, 0x4cd9, 0x92, 0x3a, 0xe9, 0x7a, 0x3b, 0x2f, 0x81, 0x31)

/////////////////////////////////////////////////////////////////////////////
// CSensorInterfDlgAutoProxy message handlers