C / C++ / MFC

HBRUSH MuxInfo::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	
	UpdateData(TRUE);

	if (pWnd->GetDlgCtrlID() )//== IDC_ALLMSG) //|| pWnd->GetDlgCtrlID() == IDC_MESSAGE)
	{
		// either the listbox or edit box has input focus

		if (m_bFirstTime == TRUE) // First time through function... set up default color
			pDC->SetTextColor(RGB(0,0,0));
		else
		{
			pDC->SetTextColor(RGB(GetRValue(m_crColor),GetGValue(m_crColor),
				GetBValue(m_crColor)));
			pDC->SetBkColor(RGB(255 - GetRValue(m_crColor),
				255 - GetGValue(m_crColor), 255 - GetBValue(m_crColor)));
		}
	}

	return m_brush; // Paint the dialog black!!
	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

RASDIALPARAMS rdParams;
rdParams.dwSize = sizeof(RASDIALPARAMS);
rdParams.szEntryName[0] = '\0';
lstrcpy(rdParams.szPhoneNumber, strPhoneNr);
rdParams.szCallbackNumber[0] = '\0';
lstrcpy( rdParams.szUserName, strUserNr);
lstrcpy( rdParams.szPassword, strPassword);
rdParams.szDomain[0] = '\0';

HRASCONN hRasConn = NULL;
dwRet = RasDial( NULL, NULL, &rdParams, NULL, NULL, &hRasConn );

void ChangeData(int** ptr){
	int ab = 1000;  // scope in this method
	*ptr = &ab;
}

int _tmain(int argc, _TCHAR* argv[])
{
	int a = 10;
	int* aPtr = &a;
	ChangeData(&aPtr);
	cout << *aPtr << endl;
	return 0;
}