SetTimeZoneInfo unable to read the timezone name for the next time

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• Tuesday, April 24, 2012 9:22 AM

   

   
  

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  Can you show the code?

  -- pa

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• Tuesday, April 24, 2012 9:45 AM

   

   
  

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  QString RegKey = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones";
      QSettings settings(RegKey, QSettings::NativeFormat);
      QStringList childKeys = settings.childGroups();
      int i = 0;
      QString strStdName;    
      for (QStringList::iterator it = childKeys.begin();it != childKeys.end(); ++it)
      {
           QString strtimeZone = RegKey + "\\" + *it;
           QSettings settings1(strtimeZone, QSettings::NativeFormat);
           QString str = settings1.value("Display",0).toString();
           strStdName = settings1.value("Std",0).toString();
           if(str == strDisplayName)
           {
              QString RegKey1 = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones";
              QString newRegKey = RegKey1 + "\\" + strStdName;
              LPCWSTR lpString = newRegKey.utf16();
              if( RegOpenKey(HKEY_LOCAL_MACHINE,lpString,&hk) == ERROR_SUCCESS)
              {
                  dwType = REG_SZ;
  
                  if( RegQueryValueEx(hk,L"TZI",0, &dwType, (BYTE *) &binary_data, &size) == ERROR_SUCCESS)
                  {
                      tz.Bias = binary_data.Bias;
                      tz.DaylightBias = binary_data.DaylightBias;
                      tz.DaylightDate = binary_data.DaylightDate;
                      tz.StandardBias = binary_data.StandardBias;
                      tz.StandardDate = binary_data.StandardDate;
                      QSettings settingsTimeZone(newRegKey, QSettings::NativeFormat);
                       muiStd = settingsTimeZone.value("MUI_Std").toString();
                       muiDlt= settingsTimeZone.value("MUI_Dlt",0).toString();
                       muiDisplay= settingsTimeZone.value("MUI_Display",0).toString();
                  }
                  break;
              }
  
           }
       }
      RegCloseKey(hk);
  
  
      bStatus =  SetTimeZoneInformation(&tz);
      if( !SetTimeZoneInformation( &tz ) )
      {
          qDebug("STZI failed (%s)\n", GetLastError());
          return 0;
      }
  
      QSettings settingsTimeZoneCurrent("HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\TimeZoneInformation" , QSettings::NativeFormat);        
      QSettings settingsTimeZoneCurrent001("HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\TimeZoneInformation" , QSettings::NativeFormat);        
  
      settingsTimeZoneCurrent.setValue("TimeZoneKeyName",strStdName);
      settingsTimeZoneCurrent.setValue("StandardName",muiStd);
      settingsTimeZoneCurrent.setValue("DaylightName",muiDlt);
      settingsTimeZoneCurrent001.setValue("TimeZoneKeyName",strStdName);
      settingsTimeZoneCurrent001.setValue("StandardName",muiStd);
      settingsTimeZoneCurrent001.setValue("DaylightName",muiDlt);
  
      if(bStatus == false)
      {
          DWORD dwErrorCode = GetLastError();
          return false;
      }
  
      // Disable the privilege
  
      tkp.Privileges[0].Attributes = 0;
      AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES) NULL, 0);

  strDisplayName is the name of the TimeZone which will come from UI.

               

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• Wednesday, April 25, 2012 6:28 AM

   

   
  

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  hi

  I have given the code too....

  can u help me in this regard pls

  Thanks in advance

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• Wednesday, April 25, 2012 9:01 AM

   

   
  

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  Hi Bujju,

  I have been watching on this thread for a while now. Could you please let us know which platform you are programming on? It seems that the codes are not of standard VC++.

  If it is a Qt application, I suggest you refer to Qt Forum for better support: http://qt-project.org/forums/.

  I am looking forward to your quick response.
  Best regards,

  ---

  Helen Zhao [MSFT]
  MSDN Community Support | Feedback to us
  

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• Thursday, April 26, 2012 5:36 AM

   

   
  

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  Hi Helen,

  As you stated, yes, it is Qt application.

  But , I'm using c++ WIN API to implement this.

  Only writing into the registry , i used Qt classes.The registry entry is also updated correctly. I want to know what else i have to do to get the timezone name correctly for the next scenario.

  But , in the Timezone settings dialog box of windows 7 , it says "Your current time zone is not recognized. Please select a valid time zone." 

  Any help would be greatful.
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• Thursday, May 03, 2012 2:09 AM

   

   
  

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  Hi Bujju,

  According to your lat reply, I suggset you go to Qt Forum for better support:http://qt-project.org/forums/. In Visual C++ General forum, we only discuss general questions about Visual C++, so this thread will be moved to Off-Topic Posts.

  Thanks for your understanding.
  Best regards,

  ---

  Helen Zhao [MSFT]
  MSDN Community Support | Feedback to us
  

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