MFC，AFXMessage，ColeDateTime [英] MFC, AFXMessage, ColeDateTime

问题描述

我以前在Windows 2000下的VC ++ 6.0下开发了所有源代码.
我已将PC升级到XP，现在使用以下代码遇到问题:

有趣的是，此代码在win 2000中可以正常工作，但在WIN XP中不能正常工作:
我要尝试执行的操作是，当我单击exe文件时，我会显示以下消息:用户具有30天的试用期，并注册该日期(当前日期)为我编写的第一个代码:

I have previously developed all my source code under VC++ 6.0 under windows 2000.
I have upgraded my PC to XP and have now run into a problem using Following code:

Fun Part is this code works fine in win 2000 but not working in WIN XP:
WHat I am trying to do is when I click the exe file I will show me message that user have 30 days rmains for trial period and register that date (CURRENT DATE) IS FIRST CODE I wrote:

SetAvailability();

COleDateTime timeStart;
// COleDateTime timeEnd(30.0);
COleDateTimeSpan timePassed;
 
int daysLeft = 0;
 
HKEY hk;
DWORD dwDisp;
 
// Open the Registry key, if it doesn't exist, it will be created.
RegCreateKeyEx(HKEY_LOCAL_MACHINE,
"SOFTWARE\\AVTRON MANUFACTURING\\ADDAPT\\PARAMETERS",
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_WRITE | KEY_READ,
NULL,
&hk,
&dwDisp);
 
// Check to see if the product code has been set in the registry entry.
int iRetValProdCode =
RegQueryValueEx(hk,
"USR:App Name\\ProductCode",
NULL,
NULL,
NULL,
NULL);
 
CAddaptApp* pAddaptApp = (CAddaptApp*)AfxGetApp();
 
if(iRetValProdCode != ERROR_SUCCESS)
{
   DWORD cbData = sizeof(pAddaptApp->m_dwProductCode);
 
   RegQueryValueEx(hk,
      "USR:App Name\\ProductCode",
      NULL,
      NULL,
      (LPBYTE)&pAddaptApp->m_dwProductCode,
      &cbData);
}
 
if(iRetValProdCode != ERROR_SUCCESS || pAddaptApp->m_dwProductCode == 0)
{ 
   // Check to see if the install date has been set in the registry entry. If it doesn't exist, create
   // the registry entry.
 
   int iRetVal = RegQueryValueEx(hk,
      "USR:App Name\\FirstInstallDateTime",
      NULL,
      NULL,
      NULL,
      NULL);
 
   COleDateTime currDateTime = COleDateTime::GetCurrentTime();
 
   if(iRetVal != ERROR_SUCCESS)
   {
      // Registry entry doesn't exist, create it, and set to the current date.
      RegSetValueEx(hk,
            "USR:App Name\\FirstInstallDateTime",
            0,
            REG_DWORD,
            (LPBYTE) &currDateTime,
            sizeof(currDateTime));
   }
 
   timeStart = COleDateTime::GetCurrentTime(); // Date and time of the installation.
 
   DWORD cbData = sizeof(timeStart);
 
   RegQueryValueEx(hk,
      "USR:App Name\\FirstInstallDateTime",
      NULL,
      NULL,
      (LPBYTE)&timeStart,
      &cbData);
 
   timePassed = COleDateTime::GetCurrentTime() - timeStart;
   daysLeft = 30 - static_cast<int>(timePassed.GetTotalDays());
 
   CString strMessage;
 
   if (daysLeft <= 0)
   {
      CProductCodeDlg dlg;
      dlg.DoModal();
 
      if(pAddaptApp->m_dwProductCode != 0)
      {
         // Create the product code registry entry.
         RegSetValueEx(hk,
            "USR:App Name\\ProductCode",
            0,
            REG_DWORD,
            (LPBYTE) &pAddaptApp->m_dwProductCode,
            sizeof(pAddaptApp->m_dwProductCode));
      }
      else
      {
         return FALSE;
      }
   }
   else
   {
      strMessage.Format(_T("ADDapt is operating under a trial license. \n")
      _T("You have %d" " days to activate ADDapt with a valid license.\n")
      _T("To activate, Please call Avtron Field Service at 216 642-1230 ext 1214. \n")
      _T("Do you want to Proceed?"), daysLeft);
 
      int iRespVal = AfxMessageBox(strMessage, MB_YESNO | MB_ICONEXCLAMATION);
 
      // User selected No, close the application.
      if(iRespVal == IDNO)
      {
         return FALSE;
      }
   }
}

和代码集注册产品代码:

and Set of Code Register the product code:

void CProductCodeDlg::OnDone() 
{
   UpdateData(TRUE);
   DWORD num = (m_dwProductCode & 0x02e0);
   if( (m_dwProductCode == 0x02e0 ) ||
       m_dwProductCode != m_dwInitialCode && 
       m_dwProductCode >= ( (m_dwSerialNum + 1001000) & 0xfff1f) && 
       m_dwProductCode <= ( ((m_dwSerialNum + 1001000) & 0xfff1f) + 225) )
   {
      CParameters::ProductCode(num);
      CAddaptApp* pApp = (CAddaptApp*)AfxGetApp();
      pApp >SetAvailability();
 
      // Create the product code registry entry.
      HKEY hk;
      DWORD dwDisp;
      int iRetVal =RegCreateKeyEx(HKEY_LOCAL_MACHINE,
         "SOFTWARE\\AVTRON MANUFACTURING\\ADDAPT\\DON\\ADDAPT",
         0,
         NULL,
         REG_OPTION_NON_VOLATILE,
         KEY_WRITE | KEY_READ,
         NULL,
         &hk,
         &dwDisp);

      if(iRetVal == ERROR_SUCCESS)
      {
         RegSetValueEx(hk,
            "USR:App Name\\Section1ProductCode",
            0,
            REG_DWORD,
            (LPBYTE) &pApp->m_dwProductCode,
            sizeof(pApp ->m_dwProductCode));
      }
   }

CDialog::OnOK();

在此先感谢您，希望很快能收到您的来信.

Vijay Patel

Thank you in advance and looking forward to hear from you soon.

Vijay Patel

推荐答案

您正在将COleDateTime存储在DWORD注册表项(32位)中. COleDateTime在内部使用DATE数据类型，它是double(64位).

You are storing a COleDateTime in a DWORD registry entry (32 bit). COleDateTime uses internally the DATE data type which is a double (64 bit).

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