Question

Accessing Registry key values

Asked by: stellarguy

Dear Sir/MAdam Hi


How can I access the registry key values using MFC.



Pls reply.


Thanks.

Rajeev

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Asked On
2005-07-11 at 23:48:57ID21488115
Tags

registry

,

mfc

,

key

Topic

Windows MFC Programming

Participating Experts
3
Points
100
Comments
12

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Answers

 

by: nonubikPosted on 2005-07-12 at 00:07:04ID: 14418986

You can use the registry API (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sysinfo/base/registry_functions.asp) or the CRegKey ATL/MFC class (http://msdn.microsoft.com/library/en-us/vclib/html/_atl_cregkey.asp).

Depending on what you want to achieve, I can show some sample code.

 

by: reidy_boyPosted on 2005-07-12 at 06:13:05ID: 14420984

HKEY hKey;
char RegKey[100];
DWORD dwType, dwSize, dwName, dwResult = 0;

sprintf (RegKey, "Software\\My Company\\Key name");

LONG lRet = ::RegCreateKeyEx (HKEY_CURRENT_USER, RegKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey, &dwResult);

if (lRet == ERROR_SUCCESS)
{
      RegQueryValueEx (hKey, "Name of value goes here", 0, &dwType, (LPBYTE)&dwName, &dwSize);
}

 

by: reidy_boyPosted on 2005-07-12 at 06:15:47ID: 14421012

BTW CreateKey tends to be used in favour of OpenKey, if the key already exists it just returns the handle to the existing one.

 

by: nonubikPosted on 2005-07-12 at 06:19:22ID: 14421038

If the above code is to be used, a

RegCloseKey(hKey);

is mandatory before the '}'

 

by: reidy_boyPosted on 2005-07-12 at 06:26:06ID: 14421099

:-)

 

by: stellarguyPosted on 2005-07-12 at 23:33:37ID: 14428510

Infact i want to retrieve informations like System processes, NT Services, Auto Run Programs, Softwares, and many more, so If ou have some samples then please send it.


Thanks.

Rajeev

 

by: nonubikPosted on 2005-07-12 at 23:40:26ID: 14428536

 

by: hemakumarPosted on 2005-07-13 at 00:06:09ID: 14428625

To retrieve information of systemprocess it is better to use

1) EnumProcesses or CreateToolHelp32Snapshot.2)To read them from the registry it will be under HKEY_DYNDATA OR
HKEY_PERFORMANCE DATA.


 

by: hemakumarPosted on 2005-07-13 at 00:08:11ID: 14428632

One question.Are u interested in stand-alone info or systems in network.

 

by: stellarguyPosted on 2005-07-13 at 23:45:16ID: 14438187

hi all

      I want to know information about systems in network. I want to know the domain, Adapter, IP address, MAC address, workgroup, DHCP server, Subnet, Gateway information etc.




Thanks and Regards

 

by: nonubikPosted on 2005-07-13 at 23:48:37ID: 14438191

hi, stellarguy,

Don't you think you're off the topic? The question's title is "Accessing registry key values". It has *nothing* to do with information about the network and it is not allowed to ask multiple questions in one http://www.experts-exchange.com/help.jsp#hi107

 

by: reidy_boyPosted on 2005-07-14 at 01:32:26ID: 14438571

I think you will find the following key and it's subkeys useful.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip

20120131-EE-VQP-002

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